iPhone XS Max display screen and back cover damaged, touch screen is unresponsive, signal board deformed, and dot projector of the front camera module is also damaged. We will repair and upgrade it to a new iPhone 13 Pro Max.
Step 1: Replacing the Deformed Signal Board
The signal board is deformed when remove the motherboard. To fix the problem requires replacing the signal board.
First of all, remove the baseband CPU, EPROM, and NFC chip on the signal board under the 7-180X Stereo Microscope.
Step 2: WiFi Unbinding
We need to remove the NAND to unbind the WiFi since the signal board is changed. Attach the NAND to the JC P11 NAND Programmer for WiFi unbinding and solder the NAND back on after unbinding.
Apply some solder paste to the bonding pads of the new signal board. Next, we use a JC heating platform to recombine the signal board with the logic board.
Step 3: Remove Dot Projector of the Front Camera
The dot projector of the front camera module is also damaged. Then we need to move the flex cables of the infrared camera and dot projector to a new front camera module.
Grind to remove the infrared camera. Install the infrared camera to a new iPhone XS Max front camera module and secure it.
Remove the broken dot projector flex cable.
Step 4: Read Original Data to a New Dot Projector
Then remove the dot projector module and read its data with JC Pro1000S Receiver. Write the data to a new flex cable. Before soldering the dot projector module, we need to remove the MOSFET and short pin 2 and 3.
Next, we solder the dot projector module to a new flex cable. Put the new dot projector flex cable back to the front camera module.
Move parts of the damaged back housing to the new iPhone 13 Pro Max back cover glass replacement.
Use adhesive to align the flex able and fix it. After we have repaired the front camera module, we will restore the True Tone of the screen.
Step 5: Restore the True Tone of the Screen
Remove the earpiece flex cable from the broken screen and install it on a new screen. Read the screen data from the damaged screen and write the data to the new screen.
Read screen data from the damaged screen with JC V1S Programmer.
Step 6: Remove Parts in Damaged Back Cover
As the original back cover is severely damaged, we need to replace it with a specialized iPhone 13 Pro Max back cover glass replacement.
Step 7: Move Parts to Back Cover and Test
The iPhone XS Max has been successfully restored and all functions are normal.