LENOVO YOGA 910 – DISASSEMBLING – HOW TO CHECK THE AC ADAPTER – HOW TO CHECK AND REMOVE BATTERY PACK

Lenovo YOGA 910 – Disassembling – How to check the AC adapter – How to check and remove battery pack

Checking the AC adapter
You are here because the computer fails only when the AC adapter is used.
If the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation.
If the computer does not charge during operation, go to “Checking operational charging”.
To check the AC adapter, follow the steps below:
1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the AC adapter cable. See the following fgure:
Note: Output voltage for the AC adapter pin No. 2 may differ from the one you are servicing.
3. If the voltage is not correct, replace the AC adapter.
4. If the voltage is acceptable, do the following:
Replace the system board.
Note: Noise from the AC adapter does not always indicate a defect
Checking operational charging
To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.
Perform operational charging. If the battery status indicator or icon is not lit, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.
If the charge indicator is still not lit, replace the system board.
Checking the battery pack
Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life.
To check your battery, move your cursor to the Power Meter icon in the icon tray of the Windows taskbar and wait for a moment (but do not click it), and the percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon.
Note: If the battery pack becomes hot, it may not be able to be charged. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.
Restore of factory default
The Lenovo YOGA 910-13IKB/Lenovo YOGA 910-13IKB Glass computer comes with pre-installed OneKey Recovery System.In order to save application files and the initial backed up files of the system, the hard disk in a Lenovo computer includes a hidden partition when it is shipped. If you need to restore the system to the point of your first boot up, just enter Lenovo OneKey
DISASSEMBLING PROCEDURE
Base cover
Remove the screws 1. Then remove the base cover 2
Battery pack
Peel off the adhesive tape that secures the battery connector 1.
Release the two latches on both edges of the socket at the same time in the directions shown by arrows 2, and then unplug the battery connector in the direction shown by arrow 3. Remove the screws 4, then remove the battery pack 5.

LENOVO YOGA BOOK – HOW TO CHECK THE AC ADAPTER – HOW TO CHECK THE BATTERY – HOW TO REPLACE THE BATTERY – HOW TO DISASSEMBLE THE KEYBOARD

Lenovo Yoga Book – How to check the AC adapter – How to check the Battery – How to replace the battery – How to disassemble the keyboard

Lenovo Yoga Book
Checking the Tab AC Charger
To check the IdeaTab AC Charger, do the following:
1. Disconnect the micro‐USB cable from the tablet.
2. Measure the output voltage across the connector marked B of the micro‐USB cable. Refer to the following figure:
Note: The output voltage across pin 3 of the micro‐B connector might be different from the one you are servicing.
3. If the voltage is not correct, replace the micro‐USB cable.
4. If the voltage is acceptable, replace the main board.
Checking the internal battery status
To check the battery status of the tablet, do either of the following:
Approximate information about the battery status
Get the approximate status of the battery at any time by checking the battery status icon on the system bar in the upper‐right corner of the screen. The shorter the green bar is, the less the battery power remains.
Accurate information about the battery status
To get the accurate information about the battery status of the tablet, do the following
1.Open the Android Settings screen.
To open the Android Settings screen, do either of the following:
# From the main Home screen, touch the Android Settings icon on Lenovo Launch Zone. The Android Settings screen is displayed.
# Touch the application icon from the action bar and then touch Settings.
The Android Settings screen is displayed.
2.Touch About Tablet on the Android Settings screen.
3.Touch Status to view the accurate percentage of the remaining battery power. You also can touch Battery use to check what applications are consuming battery power.
KeyBoard DisassemblingHeat the 5mm adhesive surface to 60‐70°C all the way around for about ten minutes.
Place suction cups in the position shown in the photo and slowly lift up the secondary display TP. Once there is a gap, insert the piece for disassembly to 5mm. Do this on all four sides to open it up, and then lift up the secondary display.
Remove the black Mylar. Use tweezers to disconnect the KeyBoard assembly and the main board connected to the FPC interface. Gently pull the FPC, so the main board and the KeyBoard assembly are completely separated.
Note:
1. The power key’s FPC can be easily broken in disassembly.
2. When open, the right side of the motor and the EMR are bonded together. Be careful not to break the motor’s lead wire.
3. The KeyBoard assembly’s FPC connector is located on the top left side. Remember that slow disassembly is required so as not to damage the FPC.
How to replace the Battery
Use a screwdriver to remove the black screws from the battery’s silver sheeting, then remove the sheeting.
Use tweezers to open the interface between the battery FPC and the main board.
Use a blade to pry open the black cover on either side of the battery, and remove the covers.
After the covers are completely separated, you will see four pieces of blue adhesive. Pull out the four pieces of adhesive, and gently remove the battery.

APPLE POWERBOOK G4 ALUMINUM 17 – HOW TO REPLACE THE LCD SCREEN

Apple PowerBook G4 Aluminum 17 – How to replace the LCD screen

Apple PowerBook G4 Aluminum 17

Remove the two 6.3 mm Phillips screws near the lower left and right corners of the display.
Removing these two screws may be difficult. It is helpful to open the display as much as possible for clearance to use a screwdriver. Also, a combination of #00 Phillips and small flathead screwdrivers along with a pair of tweezers may aid in removal.

The picture at left (rear panel already removed) shows the locations of the metal clips (shown in red) that snap on to the front display bezel. In the next few steps, you will use a small flathead screwdriver to release these clips from a ridge around the perimeter of the front display bezel.

When prying in the following steps, be sure not to damage the antenna cables that run around the perimeter of the front display bezel.

Insert the flat end of a spudger between the rear display bezel and the plastic rim attached to the front display bezel near the lower right corner of the display.

Do not try to insert the spudger between the front display bezel and its plastic surround.
While carefully prying the rear display bezel away from the display assembly, use a small flathead screwdriver to pry the small steel clip nearest the bottom right corner of the display away from the edge of the front display bezel.
Repeat the above procedure until you've released all the clips along the right side of the display.

Slightly lift the recently-freed corner of the rear display bezel to separate the clips with a spudger along the span of the clutch hinges.

Insert the flat end of a spudger between the rear display bezel and the plastic surround of the front display bezel near the lower left corner of the display.

Carefully pry the rear display bezel away from the front display bezel to expose the metal clips along the left side of the display.
Repeat the previous procedure to release the clips along the left side of the rear display bezel.

Slightly lift the lower edge of the rear display bezel and push it toward the top edge of the display, releasing the clips along the top edge of the rear display bezel.

Remove the rear display bezel and set it aside.

If necessary, remove the tape covering the display inverter.

Carefully lift the display inverter board from the side nearest the display data cable connector.
The display inverter is an extremely thin circuit board that is easily broken. Do not excessively bend or twist it during removal.

Use your fingernails to pull the ears on both sides of the inverter cable connector away from its socket on the inverter board.

Carefully lift the display inverter out of the clutch cover.

Don't try to remove the inverter just yet. It is still attached via the backlight cables.

Use your fingers to pull the backlight connector away from its socket on the inverter board.

Remove the display inverter from the display assembly.

If present, remove the piece of tape covering the display data cable.

Pull the display data cable straight away from its socket on the LCD.

Remove the four 3.2 mm Phillips screws securing the left side of the

LCD assembly to the front display bezel.

Remove the four 3.2 mm Phillips screws from the top portion of the LCD assembly.

Remove the four 3.2 mm Phillips screws along the right side of the display.

Carefully peel the protective translucent shield off the antenna board.

If you damage this during disassembly, be sure to tape over any tears or cracks to avoid unintended shorting.

Use the flat end of a spudger to pry the the antenna cables straight up off their sockets.

Remove the single 2.5 mm Phillips screw securing the display data cable ground loop to the front display bezel.

Remove the two 10.3 mm T8 Torx screws securing the left side of the clutch hinges to the front bezel.

Remove the two 10.3 mm T8 Torx screws securing the center of the clutch hinges to the front bezel.

Remove the two 10.3 mm T8 Torx screws securing the right side of the clutch hinges to the front display bezel.

Press the display release button to release the top edge of the display from the upper case.

Carefully wiggle and lift the display assembly straight up off its positioning pins on the clutch hinges.
In the following steps, you will use a heat gun to soften the adhesive securing the metal LCD frame to the front display bezel. Heat guns have the capability of producing an extremely hot jet of air, so be sure not to overheat the LCD panel.
With the heat gun set to low, start by heating the front display bezel near the upper left corner of the display panel.

Insert a plastic opening tool between the metal LCD frame and the front bezel.

Be sure you are prying between the metal LCD frame and the front bezel, not between the metal LCD frame and the LCD. It may be necessary to reheat this area until the adhesive yields enough to insert the edge of a tool.
Use the flat end of a metal spudger to gently pry up the adhesive securing the metal LCD frame to the front bezel, taking special care not to scratch the LCD panel.

While it is still inserted between the metal LCD frame and the front bezel, run the edge of your metal spudger along the top edge of the display to separate the adhesive securing the two pieces together, heating the area you are working on with a heat gun as necessary.

If the adhesive is hard to separate, use a heat gun to lightly heat the area you are working on.

Continue running the edge of your metal spudger between the LCD frame and the front bezel until the right, bottom, and left sides of the LCD are free.

Lift the LCD by its top edge only. Lifting the LCD by its lower edge will damage the backlight cables. Lift the LCD out of the front display bezel, using your metal spudger to release any adhesive if necessary.

With the LCD partially removed from the front bezel, carefully push the backlight connector through its tunnel in the front bezel.

LENOVO IDEAPAD Y471 – DISASSEMBLING PROCEDURE – HOW TO CHECK THE BATTERY PACK – HOW TO REMOVE THE OPTICAL DRIVE

Lenovo ideapad Y471 – Disassembling procedure – How to check the battery pack – How to remove the optical drive

Lenovo ideapad Y471
To verify a symptom, follow the steps below:
1. Turn off the computer.
2. Remove the battery pack.
3. Connect the AC adapter.
4. Make sure that power is supplied when you turn on the computer.
5. Turn off the computer.
6. Disconnect the AC adapter and install the charged battery pack.
7. Make sure that the battery pack supplies power when you turn on the computer.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
“Checking the AC adapter”
“Checking operational charging”
“Checking the battery pack”
Checking the AC adapter
You are here because the computer fails only when the AC adapter is used.
If the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation.
To check the AC adapter, follow the steps below
1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the AC adapter cable. See the following figure:
Note: Output voltage for the AC adapter pin No. 2 may differ from the one you are servicing.
3. If the voltage is not correct, replace the AC adapter.
4. If the voltage is acceptable, do the following:
Replace the system board.
Note: Noise from the AC adapter does not always indicate a defect.
Checking operational charging
To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.
Perform operational charging. If the battery status indicator or icon does not light on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.
If the charge indicator still does not light on, replace the system board. Then reinstall the battery pack. If it is still not charged, go to the next section.
Checking the battery pack
Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life.
To check your battery, move your cursor to the Power Meter icon in the icon tray of the Windows taskbar and wait for a moment (but do not click it), and the percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon.
Note: If the battery pack becomes hot, it may not be able to be charged. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.
To check the battery pack, follow the steps below
1. Turn off the computer.
2. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 7 (-). See the following figure:
3. If the voltage is less than +11.0 V DC, the battery pack has been discharged.
Note: Recharging will be continued for at least 3 hours, even though the indicator does not light on.
If the voltage is still less than +11.0 V DC after recharging, replace the battery.
4. If the voltage is more than +11.0 V DC, measure the resistance between battery terminals 5 and 7. The resistance must be 4 to 30 KΩ.
If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system board.
DISASSEMBLING PROCEDURE 
Battery pack
Unlock the manual battery latch 1. Holding the spring-loaded battery latch in the unlocked position 2, remove the battery pack in the direction shown by the arrow 3
Hard disk drive(HDD)/Memory/Mini PCI Express Card slot compartment cover
Loosen the screws that secure the compartment cover. Remove the compartment cover 2.
Optical drive
Remove the screw 1, insert a screwdriver into the screw hole and push the optical drive in the direction shown by arrow 2. Pull the optical drive out in the direction shown by arrow 3.

LENOVO - M491 – DISASSEMBLING PROCEDURE – HOW TO TEST THE BATTERY PACK - HOW TO TEST THE CHARGER – HOW TO REMOVE THE BOTTOM CASE

Lenovo - M491 – Disassembling procedure – How to test the battery pack - How to test the charger – How to remove the bottom case

Lenovo M491

Power system checkout
To verify a power symptom, do the following:
1. Turn off the computer.
2. Remove the battery pack.
3. Connect the ac power adapter.
4. Check that power is supplied when you turn on the computer.
5. Turn off the computer.
6. Disconnect the ac power adapter and install the charged battery pack.
7. Check that the battery pack supplies power when you turn on the computer.
If you suspect a power problem, refer to the following topics for a checkout:
“Checking the ac power adapter”
“Checking operational charging”
“Checking the battery pack”
Checking the ac power adapter
If the computer fails only when the ac power adapter is used, refer to the information in this topic to check the ac power adapter.
If the power-on indicator does not turn on, check the power cord of the ac power adapter for correct continuity and installation.
To check the ac power adapter, do the following:
1. Unplug the ac power adapter cable from the computer.
2. Measure the output voltage across the plug of the ac power adapter cable. The correct voltages are shown in the following table

Note: The output voltage across pin 2 might differ from the voltage that you measure.

3. Depending on the voltage that you measure, do one of the following:
If the voltage is not correct, replace the ac power adapter

If the voltage is acceptable, do the following:
a. Replace the system board.
Note: Noise from the ac power adapter does not always indicate a defect.
Checking operational charging To check whether the battery pack charges properly during operation, do the following:
Note: Before you begin, install a discharged battery pack or a battery pack that has less than 50% of the total power remaining in the computer.
1. If the battery status indicator does not turn on, remove the battery pack and let it return to room temperature.
2. Reinstall the battery pack.
3. If the indicator still does not turn on, replace the battery pack.
Checking the battery pack
To check detailed battery status information on the operating systems, do the following:
7: Launch the Power Manager program and click the Battery tab.
8: Do one of the following:
Click Start > Solution Center > System > Battery.
Launch the Settings program from the Start screen, and then click Power.
To check the battery pack, do the following:
1. Turn off the computer and disconnect the ac power adapter.
2. Remove the battery pack and measure the voltage between battery terminals 1 (+) and 7 (-). The correct voltages are shown in the following table.

3. Measure the resistance between battery terminals 5 and 7. The resistance should be 4 to 30 KΩ. If the resistance is not correct, replace the battery pack.

4. Depending on the voltage that you measure, do one of the following:
If the voltage is less than +12.0 V dc, recharge the battery pack. If the voltage still is less than +12.0 V dc after recharging, replace the battery pack.

If the voltage is more than +12.0 V dc, discharge the battery pack until the voltage becomes less than +12.0 V dc and then recharge the battery pack. If the voltage still is less than +12.0 V dc after recharging, replace the battery pack.
Note: Recharging will take at least three hours, even if the battery status indicator does not turn on.
5. Replace the system board if the new battery pack is not charged.

DISASSEMBLING PROCEDURE 

How to remove Battery pack

Unlock the battery lock 1. Hold the battery latch in the unlocked position, and then remove the battery pack 2.

How to remove Bottom slot cover

Remove the screws 1, and then remove the bottom slot cover 2.

How to remove Base cover

Remove the screws 1 and 2.

Remove the base cover.

LENOVO G450 – HOW TO TEST THE BATTERY PACK – HOW TO TEST THE AC ADAPTER

Lenovo G450 – How to test the battery pack – how to test the AC adapter

How to test the battery pack – how to test the AC adapter – How to remove the battery -  Lenovo G450

Lenovo G450

To verify a symptom, follow the steps below:
1. Turn off the computer.
2. Remove the battery pack.
3. Connect the AC adapter.
4. Make sure that power is supplied when you turn on the computer.
5. Turn off the computer.
6. Disconnect the AC adapter and install the charged battery pack.
7. Make sure that the battery pack supplies power when you turn on the computer.
If you suspect a power problem, see the appropriate one of the following power
supply checkouts:
“Checking the AC adapter”
“Checking operational charging”
“Checking the battery pack”
Checking the AC adapter
You are here because the computer fails only when the AC adapter is used.
If the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation.
To check the AC adapter, follow the steps below:
1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the AC adapter cable. See the following figure:

Note: Output voltage for the AC adapter pin No. 2 may differ from the one you are servicing.

3. If the voltage is not correct, replace the AC adapter.
4. If the voltage is acceptable, do the following:
Replace the system board.
Note: Noise from the AC adapter does not always indicate a defect.
Checking operational charging
To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

Perform operational charging. If the battery status indicator or icon does not light on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.
If the charge indicator still does not light on, replace the system board. Then reinstall the battery pack. If it is still not charged, go to the next section.
Checking the battery pack
Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life.
To check your battery, move your cursor to the Power Meter icon in the icon tray of the Windows taskbar and wait for a moment (but do not click it), and the percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon.
Note: If the battery pack becomes hot, it may not be able to be charged. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.
To check the battery pack, follow the steps below:
1. Turn off the computer.
2. Remove the battery pack and measure the voltage between battery terminals
1 (+) and 7 (-). 

3. If the voltage is less than +11.0 V DC, the battery pack has been discharged.

Note: Recharging will be continued for at least 3 hours, even though the
indicator does not light on.
If the voltage is still less than +11.0 V DC after recharging, replace the battery.
4. If the voltage is more than +11.0 V DC, measure the resistance between
battery terminals 5 and 7. The resistance must be 4 to 30 KΩ.
If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the system board.

Battery pack

Unlock the manual latch 1. Slide the spring-loaded latch to the unlocked position to eject the battery pack. Lift up the inner edge of the battery pack, pivoting it on the outer edge. Slide the battery pack in the indicated direction.

LENOVO M30-70 – HOW TO CHECK THE BATTERY PACK –HOW TO TEST THE ADAPTER – HOW TO REMOVE THE BOTTOM COVER – HOW TO REMOVE THE BATTERY – LAPTOP REPAIR AND SERVICE

Lenovo M30-70 – How to check the battery pack –How to test the adapter – How to remove the bottom cover – How to remove the battery – Laptop repair and service

Lenovo M30-70

To verify a symptom, follow the steps below:
1. Turn off the computer.
2. Remove the battery pack.
3. Connect the AC adapter.
4. Make sure that power is supplied when you turn on the computer.
5. Turn off the computer.
6. Disconnect the AC adapter and install the charged battery pack.
7. Make sure that the battery pack supplies power when you turn on the computer.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
“Checking the AC adapter”
“Checking operational charging”
“Checking the battery pack”
Checking the AC adapter
You are here because the computer fails only when the AC adapter is used.
If the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation.
To check the AC adapter, follow the steps below:
1. Unplug the AC adapter cable from the computer.
2. Measure the output voltage at the plug of the AC adapter cable. See the following figure:

Note: Output voltage for the AC adapter pin No. 2 may differ from the one you are servicing.
3. If the voltage is not correct, replace the AC adapter.
4. If the voltage is acceptable, do the following:
Replace the system board.
If the problem persists, go to “Lenovo M30-70” on page 26.
Note: Noise from the AC adapter does not always indicate a defect.
Checking operational charging
To check whether the battery charges properly during operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

Perform operational charging. If the battery status indicator or icon does not light on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator or icon is still off, replace the battery pack.
If the charge indicator still does not light on, replace the system board. Then reinstall the battery pack. If it is still not charged, go to the next section.
Checking the battery pack
Battery charging does not start until the Power Meter shows that less than 95% of the total power remains; under this condition the battery pack can charge to 100% of its capacity. This protects the battery pack from being overcharged or from having a shortened life.
To check your battery, move your cursor to the Power Meter icon in the icon tray of the Windows taskbar and wait for a moment (but do not click it), and the percentage of battery power remaining is displayed. To get detailed information about the battery, double-click the Power Meter icon.
Note: If the battery pack becomes hot, it may not be able to be charged. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.

How to remove the battery and case 

Unlock the manual latch 1. Slide the spring-loaded latch to the unlocked position to eject the battery pack 2. Lift up the inner edge of the battery pack, pivoting it on the outer edge. Slide the battery pack in the indicated direction to remove it.

Open four rubber foot pads with a screw driver in the direction shown by arrows 5,6 then remove nine screws, three screws .

Open the back cover along the device frame with a flat blade in the direction shown by arrows and then lift the back cover.

COMPAQ PRESARIO CQ42 – DISASSEMBLING PROCEDURE – HOW TO REPLACE THE KEYBOARD

Compaq Presario CQ42 – Disassembling procedure – How to replace the keyboard

HP G42 Notebook PC  - Compaq Presario CQ42 – Disassembling procedure – How to replace the keyboard – How to remove the WLAN – How to remove the optical drive and HDD

HP G42 Notebook PC  - Compaq Presario CQ42:  DISASSEMBLING PROCEDURE 

How to remove Battery

Before disassembling the computer, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
Remove the battery:
1. Turn the computer upside down on a flat surface.
2. Slide the battery release latch (1) to release the battery.
3. Pivot the battery (2) upward and lift it out of the computer (3).

To insert the battery, insert the rear edge of the battery into the battery bay and pivot the front edge downward until the battery is seated. The battery release latch automatically locks the battery into place.

How to remove Hard drive

Before removing the hard drive, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
4. Remove the battery
Remove the hard drive:
1. Position the computer with the front toward you.
2. Remove the two Phillips PM2.5×5.0 screws (1) that secure the hard drive cover to the computer.

3. Lift the left side of the hard drive cover (2), swing it forward, and remove the cover (3). The hard drive cover is included in the plastics kit, spare part number 600190-001.

4. Remove the three Phillips PM2.5×4.0 screws (1) that secure the hard drive to the computer.

5. Use the hard drive bracket to lift the hard drive out (2) of the hard drive compartment.

6. Disconnect the hard drive cable from the system board.

How to remove Optical drive

Before removing the optical drive, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
4. Remove the battery
Remove the optical drive:
1. Position the computer upside down with the front toward you.
2. Remove the Phillips PM2.5x5.0 screw (1) that secures the optical drive to the computer.
3. Insert a flat-bladed screwdriver or similar tool into the access point through the hard drive compartment (2), and then push the drive bracket to the left to release the optical drive.

4. Remove the optical drive (3).

How to remove WLAN module

Before removing the WLAN module, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the hard drive cover
Remove the WLAN module:
1. Turn the computer upside down with the front toward you.
2. Loosen the 2 Phillips PM2.5×5.0 captive screws (1) that secure the mini-card compartment cover.

3. Lift the cover off the computer (2). The mini-card compartment cover is included in the plastics kit, spare part number 600190-001.

4. Disconnect the two WLAN antenna cables (1) from the WLAN module.
5. Remove the Phillips PM2.0×3.0 screw (2) that secures the WLAN module to the computer. (The edge of the module opposite the slot rises away from the computer.)

6. Remove the WLAN module (3) by pulling it away from the slot at an angle.

How to remove Keyboard

Before removing the keyboard, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the hard drive
6. Remove the mini-card compartment cover
Remove the keyboard:
1. Turn the computer upside down with the front toward you.
2. Remove the six Phillips PM2.5×6.5 screws that secure the keyboard to the computer.

3. Turn the computer display-side up with the front toward you.

4. Open the computer as far as possible.

5. Release the top edge of the keyboard by lifting it up to disengage the keyboard from the tabs on the top cover (1).
6. Slide the top edge of the keyboard back (2) until it rests against the display.

7. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached and disconnect the keyboard cable (2) from the system board.

HP PROBOOK 4430S HOW TO REMOVE THE BOTTOM DOOR – HOW TO REMOVE THE BATTERY

HP ProBook 4430s How to remove the Bottom door – How to remove the battery

HP ProBook 4430s - 4431s - 4330s - 4331s – Disassembling procedure – How to remove the Bottom door – How to remove the battery – How to remove the optical

HP ProBook 4430s - 4431s - 4330s - 4331s:  DISASSEMBLING PROCEDURE 

How to remove Battery

Before disassembling the computer, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
Remove the battery:
1. Position the computer upside-down on a flat surface, with the battery bay toward you.
2. Slide the battery release latch  to release the battery.
3. Pivot the battery  upward to remove it from the computer.

How to remove Bottom door

Before disassembling the computer, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the battery
Remove the bottom door:
1. Position the computer upside-down on a flat surface, with the battery bay toward you.
2. Remove the locking screw (if installed)  and slide the release latch .
3. Slide the door toward the front of the computer (3), and then lift the door off the computer.

How to remove Optical drive

Before removing the optical drive, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the bottom door
Remove the optical drive:
1. Position the computer upside-down with the right side toward you.
2. Remove the Phillips PM2.5×4.0 screw  that secures the optical drive to the computer.
3. Push the optical drive tab  to release the optical drive from the computer.

4. Remove the optical drive  from the computer.

How to remove Hard drive

Before disassembling the computer, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the bottom door
Remove the hard drive:
1. Position the computer upside-down, with the battery bay toward you.
2. Remove the four Phillips PM2.0×3.0 screws  that secure the hard drive to the computer.
3. Grasp the Mylar tab on the hard drive and slide the hard drive to the right  to disconnect it from the system board connector.

4. Remove the hard drive  from the hard drive bay.

How to remove Keyboard

Before removing the keyboard, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the bottom door
Remove the keyboard:
1. Position the computer upside-down with the front toward you.
2. Remove the Phillips PM2.5×6.0 screw  that secures the keyboard to the computer.
3. Remove the Phillips PM2.5×4.0 screw  that secures the keyboard to the computer.

4. Insert a screwdriver or similar tool into the gap near the fan and push to disengage the keyboard.

5. Position the computer right-side up with the front toward you.
6. Open the computer as far as possible.
7. When lifting the keyboard, note that some models have tape  that secures the keyboard to the top cover.

8. Lift and rotate the keyboard until it rests on the palm rest .

9. Lift the keyboard connector latch , and then disconnect the keyboard cable from the system board .

10. Remove the keyboard.

HP 2760P ELITEBOOK – DISASSEMBLING PROCEDURE – HOW TO REMOVE THE KEYBOARD – HOW TO REMOVE HDD – HOW TO REMOVE THE BATTERY

HP 2760p EliteBook – Disassembling procedure – How to remove the keyboard – How to remove HDD – How to remove the battery

HP 2760p EliteBook:  DISASSEMBLING PROCEDURE 

How to remove Battery

Before disassembling the computer, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
Remove the battery:
1. Turn the computer upside-down on a flat surface, with the battery bay toward you.
2. Slide the battery release latch to release the battery.
3. Pivot the edge of the battery upward and remove it from the computer.

How to remove Service access cover

Before removing the service access cover, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the battery
Remove the service access cover:
1. Position the computer upside-down, with the front toward you.
2. Loosen the three Phillips M2.0x3.0 captive screws that secure the service access cover to the computer.
3. Lift the rear edge of the service access cover until it rests at an angle, and then remove the cover.

How to remove Hard drive

Before removing the hard drive, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the following components:
a. Remove the battery
b. Remove the service access cover .
Remove the hard drive:
1. Loosen the Phillips M2.5×8.0 captive screw (1) that secures the hard drive bracket to the computer.
2. Grasp the tab on the hard drive and slide it forward to disconnect the hard drive.

3. Lift the hard drive (2) to remove it from the computer.

How to remove Keyboard

Before removing the keyboard, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet, and then unplugging the AC adapter from the computer.
4. Remove the following components:
a. Remove the battery
b. Remove this service access cover
Remove the keyboard:
1. Turn the computer upside-down, with the front toward you.

2. Remove the two screw caps and loosen the five captive screws that secure the keyboard to the computer.

3. Turn the computer right-side up, with the front toward you.

4. Open the display as far as possible.
5. Insert a flat tool under the back edge of the keyboard near the display hinge. Gently lift the rear edge of the keyboard and disconnect the keyboard.

6. Holding the keyboard at an angle, lift the keyboard far enough to gain access to the cables underneath and release the zero insertion force (ZIF) connector to which the pointing stick cable is attached to the system board and remove the pointing stick ZIF cable (3) from the connector.

7. Flip the keyboard over to the left and lay it flat then release the ZIF connector that secures the keyboard cable to the system board and remove the keyboard cable from the ZIF connector.

8. Release the ZIF connector to which the pointing stick cable is attached, and then disconnect the cable from the keyboard.

ACER ASPIRE ONE ZG5 – HOW TO REPLACE THE RAM – HOW TO REMOVE THE CASE ACER ASPIRE ONE ZG5

Acer Aspire One ZG5 – How to replace the ram – How to remove the case Acer Aspire One ZG5

Turn the netbook upside down with the battery at the top, away from you.

Unlock the battery by sliding the switch located near the left hinge to the left "unlocked" position.

Slide the latch located on the opposite hinge from the lock while pushing the battery up. Gently loosen the two Phillips #0 screws in the small panel that covers the wireless card. These screws are built into the panel and aren't meant to be completely removed.

Lift up the panel and remove it from the case. Disconnect the two antenna cables from the left side of the wireless card.

Remove the single 3.9 mm Phillips #1 screw from the bottom left of the wireless card. Gently lift up the left side of the wireless card and slide the card out of its socket.

Turn the netbook over and open the display so that the keyboard is facing you.

There are three tabs located on the top of the keyboard. Start with the spudger pointing towards the display and pry up to push each tab off the keyboard. As you move to the next tab, ensure the previous tab doesn't reset itself.

Lift top of keyboard up. If it doesn't lift easily, there may be tabs on the sides - use the tool to ease them aside and/or shift the keyboard from side to side.

There is a short ribbon cable connecting the keyboard to the netbook.

Disconnect the ribbon by lifting the black plastic hinge and removing the clear blue cable.

Close the display and turn the ZG5 over so that the battery compartment faces away from you.

Remove three 5.8 mm Phillips #0 screws from the bottom of the case Remove three 3.9 mm Phillips #1 screws from the battery compartment. Remove two 5.8 mm Phillips #0 screws from underneath the feet near the hinges.

Turn the netbook back over and open the display with the keyboard cavity facing you.

Flip up the retaining flap on the trackpad ribbon cable ZIF connector. Using the blue tab, pull the trackpad ribbon cable from its socket on the motherboard.

Remove the five black 4.7 mm Phillips #0 screws from the metal casing. Remove the single silver 4.3 mm Phillips #00 screw from the right side of the metal casing.

Starting at the red rings along the hinge, insert a spudger or plastic opening tool into the seam between the two halves of the case. Slide the spudger toward the front of the device, releasing the small clips that hold down the top case. Gently lift off the top case.

Disconnect the two antenna cables from the right side of the wireless card.

Remove the single 3.9 mm Phillips #1 screw from the wireless card.

Gently pull the wireless card to the right and slide it out of its socket.

Disconnect the display cable from the top left of the motherboard.

Disconnect the speaker cable from its socket on the motherboard.

Remove three 3.9 mm Phillips #1 screws from the small I/O board. Remove a single 3.9 mm Phillips #0 screw from the front of the motherboard. Some laptops may instead have a single 4.7 mm Phillips #0 screw.

Remove the two 4.7 mm Phillips #1 screws that connect the display to the motherboard.

Gently lift the I/O board up from the right side of the case. The I/O board is attached to the motherboard by a short cable.

 Lift the entire motherboard assembly out the case.

Turn the motherboard over so the RAM is facing up.

Simultaneously release both latches on opposing sides of the RAM. The RAM should spring up.

Pull RAM straight out from the slot.