How to properly repair the iPhone 7P front camera does not work？

The iPhone 7 Plus is equipped with a dual camera design that greatly enhances the user's shooting experience. Perhaps it is the reason for the new design. Recently, some users have reported that the camera on this model has a problem when it is used, the problem is that the iPhone 7 Plus front camera not working. How to repair it?




First, we  need to test it. Turn on the iPhone 7 Plus, get into IOS, open the iPhone camera icon, and iPhone rear camera is normal, switch it to iPhone front camera, the iPhone 7 Plus front camera not working, it displays black.

Disassemble the iPhone 7 Plus by phone opening tools, carefully remove the iPhone motherboard.

Put iPhone motherboard on the WL Aluminum Alloy Pad.

Measure the ground resistance for iPhone front camera socket J4503 by Fluke 15B+ Digital Multimeter, the data tested is normal. And then measure the iPhone front camera power supply, the data tested also is normal. However, when we measure the I2C bus, we find the voltage for I2C_NH_SCL_CONN only have 0.62V, which is abnormal.

After check the iPhone 7 Plus schematic diagram in the WUXINJI Dongle, we need to replace the resistor R4812. As shown in picture.



Take an new resistor R4813, remove the old resistor R4812 from iPhone motherboard, and then install the new resistor R4813 by QUICK 861DW hot air rework station.

After installation, measure it again, the data is normal now.

Assemble the iPhone, and get into IOS to test the iPhone camera, the iPhone front camera works properly.


If you need any mobile phone repair tools, please visit www.vipfixphone.com.

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