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Fixed: iPhone 6P Backlight Display Problem


A customer sent us an iPhone 6 Plus to fix it. The problem described was that the iPhone 6 Plus didn't show image or backlight fault. The motherboard had been repaired once. How to repair the problem? Let's check in this article!

After receiving iPhone 6 Plus, the appearance of iPhone 6 was not obviously damaged.

Use phone opening tools to disassemble the iPhone, take out the iPhone motherboard. Put iPhone motherboard under the Trinocular Stereo Microscope to observe, we found the iPhone display touch IC of the iPhone motherboard, iPhone light control IC U1501 and NUT column all have been removed. Moreover, the bottom of the NUT column on the iPhone motherboard has been hit by a long screw. 

Use QUICK 861DW hot air rework station and BGA remove graver to scrape it, there is no disconnection phenomenon.


Measuring the resistance value for the D3# layer of the iPhone display touch power supply IC U1501 by digital multimeter, there is no resistance, which is abnormal.

After check iPhone schematic diagram on the WUXINJI Dongle, we use QUICK 861DW hot air rework station to solder a jump wire from resistor R0302 to U1501D3#, and then install a good U1501.


After installation, iPhone 6P is measured again, and the data is normal now. Install the iPhone, and open it for testing, the iPhone shows normal, other functional tests are normal, the fault has been fixed!

More cell phone repair solutions, please read on www.vipfixphone.com

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