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For those of you who need to repair your Galaxy S4 for either LCD screen replacement or parts replacement (such as fixing broken micro USB port, camera, etc…etc…), here’s a video tutorial that shows you how to easily disassemble and re-assemble your Galaxy S4.
Update: I’ve also replaced my broken screen glass on my Galaxy S4, see How to Replace Screen Glass Only on Galaxy S4!
You will need:
Plastic tool or guitar pick
Step 1. Unscrew the 9 visible screws.
Step 2.Start near the volume rockers and insert your plastic tool/guitar pick in between the screen and the frame.
Step 3. Carefully slide your plastic tool along the edges until the frame pops off.
Step 4. To take the motherboard out, make sure you pop off connectors as shown below.
Step 5. There’s one black screw on top right that holds the motherboard, unscrew it.
Step 6. Carefully pull the motherboard out, it should pop out easily. If you need to replace the camera on the Galaxy S4, you can simply pop it off the motherboard and replace with a new one.
Step 7. If you are replacing the screen/digitizer, you will need to pull out the sensors at the top, the vibrating motor (on left side) and also the 3.5mm headphone jack on top right.
What is a Custom ROM?
A custom ROM is a custom, modified operating system that you can install on your Android device. Basically it's like installing Windows OS on a Macbook. By installing a custom ROM, you can bypass stock factory settings like locked hotspot tether, install new Android versions early, or even convert your phone into another OS.
With a custom ROM, you can really maximize the capabilities of your smartphone by adding custom features that have been developed by open source developers.
How to Install Custom ROMs
First, you will need to root your device, if it is not rooted yet, follow our root tutorial and root your phone.
Once rooted, you should have TWRP installed on your phone. Installation of a custom ROM is easy if you learn the basic of it. If you don't know how to install custom ROMs using TWRP recovery, see our tutorial on How to Install Custom ROM using TWRP!