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How to Repair iPhone 6 Plus Black Screen Fault


Received an iPhone 6 Plus from one of our customers, he described that the iPhone 6P screen gets black and nothing can be displayed. And the display chip part was repaired by another technician before. According to the previous phone repair experience, we think the fault is caused from the power supply.



1. Disassemble the iPhone 6 plus and take off the motherboard.

2. Use Fluke 15B+ digitalmultimeter to measure the iPhone 6P chip solder plate, all is going well.
 3. After welding the display chip and install the screen to measure current, the booting current jumping is abnormal.



4. The backlight behind the screen is bright, +5.7V power supply is measured only about 2.2V, and -5.7V has no voltage. As show in picture 16-6-1 and picture 16-6-2.

5. We judge the display chip internal boost has some problem, and the WUXINJI dongle circuit diagram shows that the capacitor C1554 energy storage booster capacitor is short circuited.

6. Use QUICK 861DW Hot Air ReworkStation to remove the capacitor and replace with a good capacitor carefully.

7. The iPhone 6 Plus displays well now.

More profesional cell phone repair tutorial, contact us on www.vipfixphone.com

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