The iPhone 6 Plus fault is that the iPhone flashlight cannot be turned on, and the iPhone rear camera won't open
either. But the iPhone front camera is normal. How to repair this kind of fault?
Generally, if the iPhone rear camera won't
turn on, then the flashlight also cannot be turned on normally. As long as one
side is abnormal, it can cause no reaction. After check the iPhone circuit
diagram on WUXINJI Dongle, we
know that they all communicate with the CPU through the
I2S_ISP_TO_RCAM_SCL_I2C_ISP_BI_RCAM_SDA bus. As long as one fails, both of them
cannot be used.
Use JM-P01 Essential Phone Repair Toolkit to remove the iPhone motherboard,
and observe it under the 7-45X 180X Stereo ZoomMicroscope, we found the U3200 chip had traces of
moldy by water.
With the help of QUICK861DW and Precision TitaniumAlloy Tweezers, we remove the chip smoothly and quickly.
And then we found out that the U3200 chip 4-pin pp_vcc_main powered pin had
corroded.
Measure the diode data of this pin with Fluke
15B+ Digital Multimeter, it
is infinitely large. Check the iPhone schematic diagram found that PP_VCC_MAIN
is through the FL3202 inductance input to the U3200 chip 4 pin. The FL3202
inductance has been corroded under the microscope observation.
Mend the inductance and U3200 power supply
IC well, installed iPhone and test, now the flashlight can be turned on, and
the iPhone rear camera also back to normal. The repairs
end!
Visit www.vipfixphone.com to get more professional cell phone repair skills!
Visit www.vipfixphone.com to get more professional cell phone repair skills!
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