Chosen Solution
Hi guys, I have an iPhone 6, both cameras and flash not working. Tried known working cameras, made no difference, both cameras don’t work. So I know it must be the motherboard. As usual I removed and replaced the camera IC U2301. Tested it again. To my surprise, bother cameras still don’t work. I then removed the new U2301 again, did a jumper from A1 to A2, now capacitor C2345 has constant voltage 3.8-4V feeding from VCC_main. Tested the phone again, both cameras still don’t work! I double checked the PP2V85_CAM_VDD line, no problem found, the line has continuity. I also checked pin 34 of the rear camera FPC connector J2321, it has voltage 3.8V (since I jumped A1 to A2 on U2301), which means it has power to turn on the camera. I don’t understand why cameras still not working. Can anyone tell me where to check now? Many thanks.
Have you checked FL1144 & FL2343? also, check the PP1V2 & PP1V8 lines that power the cameras as well. Look at FL1123 & FL1166 for the FCAM and FL2329, FL2330 & FL2318 for the RCAM. Explore that entire circuit .
