Master Electronics Repair !

Welcome to Master Electronics Repair! website.Here you will find:Service Modes, Circuit Diagrams,Service manuals, Firmware Update procedure, Disassemble procedure, Universal remote control setup codes, Troubleshooting, Diagnosing, Measuring, and more.... of many of LCD/LED TV/Displays,others various electronic apparates,trough many technical notes and tips/tricks to help repairing/fixing Troubles/ faults,for electrical technicians.This site helps you to save the Earth from electronic waste!

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!

Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

How to use the site:

- If you landed here via any Search Engine, you will get what you searched for and you can search more using the search this blog feature provided by Google. You can visit more posts scrolling the left blog archive of all posts of the month/year,
or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 27 February 2019

SAMSUNG GALAXY S4 – DISASSEMBLING PROCEDURE – HOW TO REMOVE THE DISPLAY – HOW TO REMOVE THE BATTERY – MOBILES AND SMARTPHOES REPAIR AND SERVICE

Samsung Galaxy S4 – Disassembling procedure – How to remove the display – How to remove the battery – Mobiles and Smartphoes repair and service

Category: Mobiles and SmartPhones Repair and Service

Contents of this article

How to remove the battery
How to remove the LCD screen
How to remove the connectors

Samsung Galaxy S4

DISASSEMBLING PROCEDURE

How to remove Battery

Near the headphone jack, on the side of the Galaxy S4, insert a plastic opening tool in the notch located in the back cover. Work your way around the entire S4 smartphone gently freeing the clips that secure the back cover in place.
Next, use the plastic opening tool or nylon spudger to pry up and remove the battery from the Galaxy S4.

How to remove Loud Speaker

The SIM card and the microSD card should now be easily accessible, remove both of them from the S4.
Now, locate and remove the nine Phillips screws (#00) that secure the plastic rear housing and loud speaker to the S4 display assembly and front housing.

Clips secure the loud speaker into the Samsung smartphone, use the fine tip curved tweezers to pry the loud speaker up and out of the Galaxy S4.

The rear housing can be removed utilizing the plastic opening tool. Begin separation toward the bottom of the S4 and carefully work your way around the entire smartphone releasing the clips that hold the rear housing in place.

Locate and remove the Phillips screw (#00) that secures the motherboard into the Samsung smartphone. (marked with an orange circle)
Locate and disconnect the coaxial cable from its socket. (marked with white circle) The dock connector assembly has a metal bracket securing it to plastic posts on each side of the dock port. Utilize the fine tip curved tweezers to pry up on the bracket and release it from the plastic posts. (marked with black circles)
Next, locate the six wafer connections and use the fine tip curved tweezers to release them from their sockets. (marked with white rectangles)

With the single Phillips screw removed and all connec tions released from the motherboard, you should now be able to carefully remove the motherboard from the Galaxy S4.

How to remove Rear-Facing Camera

Use your nylon spudger to pry up and remove the rear-facing camera from the S4.

How to remove Dock Connector Assembly

The dock connector assembly is now secured to the S4 by a small amount of adhesive. With the flat side of the nylon spudger pry up and remove the dock connector assembly from the Galaxy S4.

How to remove Headphone Jack Assembly

Locate and remove the two Phillips screws (#00) that secure the components located toward the top of the S4. (marked with orange circles) Next, use the fine tip curved tweezers to lift the headphone jack assembly from the Samsung smartphone.

How to remove Front-Facing Camera

Utilize the fine tip curved tweezers to remove the metal clip securing both the front-facing camera and the earpiece speaker assembly.

You can now use the fine tip curved tweezers to pry up
and remove the front-facing camera from the S4.

How to remove Display Assembly (LCD & Touch Screen)

The S4 SGH-i337 Display Assembly (LCD & Touch Screen) is fused together and cannot be separated. The display assembly is secured to the frame/front housing of the smartphone with a good amount of adhesive; it will require heat, and patience, to separate.
This procedure is recommended only on smartphones with a display assembly that is ALREADY DAMAGED. Use a heat gun or blow drier to heat the adhesive securing the display assembly to the smartphone’s frame/front-housing.

To separate the Samsung display assembly from the rame/front housing, utilize one of the screwdrivers or he plastic opening tool and through the front-facing camera hole, while securely gripping the sides of the S4’s frame/front housing, carefully push the damaged display assembly away from the S4’s frame/front housing.

You can now use the nylon spudger or plastic opening tool to continue working around the Galaxy S4 display assembly slowly separating it from the frame/front housing. Be mindful of the home button assembly toward the bottom of the Samsung smartphone.
With the S4 display assembly seperated from the frame/front housing, you can utilize the flat end of the spudger to remove the home button assembly.