How to Fix iPhone 7 Plus Rear Camera Not Working | Chip Level Repair

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If your iPhone rear camera not working after troubleshooting the software and replacing the parts, this is a hardware issue. In this article, we will share how to troubleshoot and fix iPhone 7 Plus rear camera not working, follow our guides, you will be able to troubleshoot and fix your iPhone as well, hope you enjoy our sharing.

Step 1 Function Test

Turn on the iPhone 7 Plus and launch the camera app, the rear camera can’t work and shows black screen, while the front camera works properly. Turn on the flashlight, the flashlight doesn’t work neither.

Step 2 Diagnosis

Take off the motherboard and measure the diode resistance of the rear camera connector. As all the rear camera connector diode resistance values are measured normal, we will measure the rear camera working voltage and see if it’s normal.

The rear camera connector J4501 pin 17 and connector J3001 pin 17 are measured no working voltage, we deduce it’s the defective power supply ICs U2501 and U3001 have caused the rear camera not working.

Step 3 Troubleshooting & Repairing

Since the rear camera power supply ICs are removed, we will use the jump wire to borrow the electricity and test. First use the hot air gun to remove these 2 power ICs, add solder to 3 capacitors, then use the soldering iron to solder these spots with cooper wire. Clean off with the PCB cleaner.

Step 4 Reassemble and Test

Reassemble the motherboard and test, the rear camera function and flashlight function are both back to work. We therefore confirmed it’s the defective power supply ICs caused the problem, simply replace with new good ICs will solve the problem

Please refer to below detailed video:

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Tools and Materials Used in This Video:

Solder flux

Hot air gun

Microscope

Multimeter

Tweezers

PCB cleaner

Soldering iron

Cleanroom wipes

Desoldering braid/solder wick

Motherboard fixture

iSlack suction pump/opening pliers

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