The iPhone 7 camera unavailable, such as the iPhone camera won't turn on, can't take photos, can't save photos, ect. Here are solutions for repairing iPhone 7 camera common issues.
Check iPhone 6 camera circuit diagram on WUXINJI Dongle, we need to measure some power supply circuits with multimeter, the PP1V8_UT (1.8V), PP3V0_UT_SVDD (3.0V) can be measured easily after iPhone was turned on. However, there are there are three power supply circuits only can be measured under the good camera situation, they were PP2V8_UT_AF (2.8V), PP2V9_UT_AVDD(2.9V) and PP1V2_UT_VDD (1.2V).
The PP2V9_UT_AVDD circuit power supply is provided by the U2501, the U2501 is very easy to cause iPhone camera working abnormally. The best solution is to take the U2501 off and short connect by jumper wire to solve the problem.
PP3V0_UT_SVDD (3.0V), PP2V8_UT_AF (2.8), VPP1V2_UT_VDD (1.2V) is sent to the camera interface J4501 respectively through inductance FL2500 FL2502 FL2505 FL2506. These inductors are easy to damage, resulting in failure to take photos. First, measure the resistance of the 5 circuit of power supply to the ground, exclude the failures of broken circuit or short circuit. Check FL2500 FL2502 FL2505 FL2506, use PPD 861D Plus hot air rework station to short connect jump wire on U2501.
After finish this step, install the iPhone to test, if the iPhone 7 camera still unavailable, you can you can erase all the data and activate it again.
Finally, iPhone 7 camera can be used normmally. Continue to test other functions, to check whether everythind works well.
No comments:
Post a Comment