How to Repair iPhone 13 Pro Max Face ID Not Working? - JC CHIP Method

If you own an iPhone 13 Pro Max and your Face ID fails to work, don't panic. This issue is quite common, and there is a way to fix it. In this guide, Phonefix will show you how to repair iPhone 13 Pro Max Face ID not working using the JC CHIP Method.

What causes the issue?

The issue of iPhone 13 Face ID not working may arise after a screen replacement. This is because the chip on the original screen has saved Face ID data. The transfer of this chip to the new screen might solve the problem.

What is the JC CHIP Method?

The JC CHIP Method is a technique used to repair iPhone 13 Pro Max Face ID issues caused by damaged dot matrix circuits. It involves replacing the dot matrix IC chip on the phone's motherboard.
The JC-V1SE Multifunction Programmer with Dot Matrix Testing Board is required for this method.

What You Need

•     iPhone 13 Pro Max
•     JC-V1SE Multifunction Programmer with Dot Matrix Testing Board
•     JC iPhone 13 Pro Max Face ID Dot Matrix IC Chip
•     Soldering iron
•     Tweezers
•     Screwdrivers
•     Pry tool
•     Heat gun
•     Anti-static wristband
•     Microscope or magnifying glass

Step-by-Step Guide

Follow these detailed steps to repair your iPhone 13 Pro Max Face ID not recognizing your face:

Step 1 - Preparation

Before starting, ensure that you have all the necessary tools and materials and that you are working in a safe and clean environment. Wear an anti-static wristband to protect your phone from electrostatic discharge.

Step 2 - Disassemble the Phone

Remove the screws at the bottom of the phone and use a ATTEN ST-862D Hot Air Gun Soldering Station to soften the adhesive that secures the screen.

Use a pry tool to gently lift the screen from the bottom and release the clips that hold it in place. Once the screen is free, disconnect the cables that attach it to the motherboard.

Step 3 - Diagnosis Using JC-V1SE

Connect the JC-V1SE Multifunction Programmer with Dot Matrix Testing Board to your iPhone 13 Pro Max. Run the JC-V1SE software and select the “Face ID” option. Click on “Read Info” to identify whether the issue is with the dot projector or the flood illuminator.

Step 4 - Locate the Dot Matrix IC Chip

Locate the dot matrix IC chip on the motherboard. It is usually found near the front-facing camera module and is labeled U3701. Use a microscope or magnifying glass to inspect it for any damage.

Step 5 - Remove the Damaged Chip

Use a soldering iron and tweezers to remove the damaged dot matrix IC chip from the motherboard. Be careful not to damage any surrounding components.

Step 6 - Install the New Chip

Place the new JC CHIP (dot matrix IC chip) onto the motherboard in the correct position. Use the soldering iron to carefully solder it onto the board.

Step 7 - Test the Repair

Connect the screen back to the motherboard and turn on your phone. Use the JC-V1SE Programmer with Dot Matrix Testing Board to test the repair by checking the dot matrix circuit. If everything is working correctly, reassemble the phone.

Conclusion

The JC CHIP Method is an effective way to fix iPhone 13 Pro Max Face ID issues caused by damaged dot matrix circuits. By following this step-by-step guide, you can repair your phone and avoid paying for expensive repairs or replacing the device.

Remember to work carefully and follow all safety precautions when performing any phone repairs.