How to replace the mother board - Samsung Galaxy S5
Samsung Galaxy
S5: DISPLAY REPLACEMENT PROCEDURE
Insert
a fingernail or plastic opening tool into the divot to the left of the
rear-facing camera. Gently pry and twist the flexible rear cover off the back
of the phone.
Insert
a fingernail or plastic opening tool into the recess in the bottom right corner
of the battery and lift upward. Remove the battery away from the phone.
Using
a fingertip, pull the microSD card straight down out of its slot. Remove the
microSD card from the phone.
Repeat
the above procedure to remove the SIM card.
Use
a plastic opening tool to pry up the plastic midframe connector panel. Remove
the connector panel with a pair of tweezers. There should be enough adhesive to
readhere the panel upon reassembly, otherwise use a small amount of
double-stick tape.
Use
the sharp tip of a spudger to pry the home button cable connector straight up
off its socket.
In
the following steps you will be using an opening pick to separate the adhesive
securing the front panel glass. Only pry where directed. If you experience
resistance, stop sliding the opening pick and reapply heat. Insert the edge of
an opening pick underneath the bottom right side of the front glass.
Slide
the opening pick up along the right side of the display
Carefully
slide the pick around the corner, stopping before the speaker grille at the top
of the phone.
The
adhesive securing the top of the phone is only a narrow strip above the earpiece
speaker. Slide the pick along the top of the speaker to avoid damaging internal
components. Slide the opening pick across the top of the phone, being very
careful not to insert the pick too deeply.
Carefully
slide the pick around the upper left corner. If you encounter any resistance
from cooling adhesive, reapply a heated iOpener to the left side of the phone.
Slide
the opening pick down along the left half of the phone stopping at the lower
left corner.
Slide
the opening pick all the way to the bottom left corner of the phone, making
sure it is securely placed. In the following step you will be placing an
iOpener over the home button end of the phone, you won't want your opening pick
to slip out.
The
bottom end of the phone contains the soft button and home button ribbon cables.
If you insert the opening pick too far into the phone you risk cutting these
cables. Slide the very end of the opening pick across the bottom edge of the
display to separate the last of the remaining adhesive.
Twist
the opening pick to detach the glass from the phone. If the front panel does
not detach easily, it may require additional adhesive cutting.
If
the front panel is not easily freed, the adhesive on the soft button cable may
need to be separated. These cables are thin and easily damaged, therefore be
certain you are only peeling them off the display assembly and not lacerating
them. Insert an opening pick under the soft button icons on the display and pry
the button cables down off the inside of the front panel.
Slightly
lift, but do not remove, the home button end of display assembly. Do not remove
the front panel entirely. It is still attached by a connector. If you are
reusing the home button flex cable, be careful not to sever the cable from the
home button. Adhesive can cause the cable to rip apart from the home button.
While the home button will still work, the fingerprint scanner will not.
Use
the sharp tip of a spudger to lift the front panel assembly cable connector straight
up off its socket on the motherboard. Safely remove the front panel
assembly from phone
Remove
the ten 3.4 mm Phillips #000 screws from the display side of the midframe.
Flip
the phone over and remove the following screws from the battery side of the
midframe: Two 4.4 mm Phillips #000 screws near the USB port on the battery side
of the phone
One 4.4 mm Phillips #000 screw
One 4.4 mm Phillips #000 screw
Gently
run a plastic opening tool down along the left inner side of the interior frame
to separate the three white plastic clips.
The
midframe is composed of two halves that encase the motherboard. Gently pull the
long sides of the silver bezel out away from the phone to separate the two
halves of the midframe. It may be helpful to gently push in from the inside of
the battery compartment, but be careful not to flex the interior half of the
midframe, as the motherboard is mounted to it.
Continue
on to the right side of the silver bezel, pulling away from the interior
section of the midframe to separate the two halves.
Use
a plastic opening tool to pry any remaining corners out of the silver bezel.
Carefully
remove the interior midframe/motherboard assembly from the white inner
midframe.
Carefully
wedge the tip of a spudger underneath the antenna cable connector. Delicately
lift the spudger directly upwards to disconnect the antenna connector off its
socket on the motherboard.
Remove
the single 3.0 mm Phillips #000 screw securing the motherboard to the midframe.
Pull,
but do not remove, the camera end of the motherboard up from the midframe to
allow access to the connectors on the rear. Do not attempt to fully remove the
motherboard as it is still attached to the interior midframe by the Micro-USB
port daughterboard connector.
Use
the flat end of a spudger to pry the daughterboard connector straight up off
its socket on the motherboard.
Use
the flat end of a spudger to disconnect the front-facing camera connector off
its socket on the motherboard. Remove the front-facing camera from the
motherboard.
Use
the flat end of a spudger to disengage the rear-facing camera connector
straight up off its socket on the motherboard. Remove the rear-facing camera
from the motherboard.
