A part does not work, there must be a reason for it. The iPhone 6S rear/front camera not working, it’s usually caused by a 3-set circuit damage, we can check all iPhone circuit diagram on WUXINJI Dongle. Each damaged power supply circuit of rear camera has different solutions, here is the real fix!
For damaged rear camera
One of the circuit is 1.2V PP1V2_CAMERA from the power supply IC, the 1.2V power supply was sent to rear camera interface J3200 through inductor FL3201, if the voltage is not sent to the iPhone rear camera interface, it is generally caused by FL3201 corrosion, use jumper wire to do short connection will solve the problem.
The second circuit is 1.8V from the IC power supply, 1.8V power supply was sent to FL3220 rear camera interface through inductor FL3220, and inductor 3220 is easy to get corrosion damage so that 1.8V is not able to be sent to rear camera interface, use jumper wire to do short connection will solve the problem.
The last circuit power 2.85V is supplied by U3200, the U3200 output voltage 2.85V was sent to rear camera interface through inductor FL3202, the rear camera fault is mostly caused by U3200 damage so that 2.85V is not able to be supplied to rear camera, the 2.85V voltage is not able to be tested by Fluke 15B+ Digital Multimeter until there is resistance C3200 when taking photos. It’s not easy to measure because of narrow place, so we can connect an enameled wire on capacitor C3200 for convenient measurement. Turn on the camera and test it immediately. If it is a good handset, it can measure 2. 85V voltage, if the 2.85V voltage is not measured when the camera is turned on, it indicates that U3200 is damaged. This situation can be also solved by phone repair jumper wire(FX051) short connection.
For damaged front Camera
If the front camera can not work normally, check the FL3100 FL3102 FL3104 short connection. Re-stall or replace the iPhone 6s power IC.
In addition, the flash IC damage will also cause failure to take photos or videos. Replace the iPhone flash IC can fix the problem.