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How to Fast Repair iPhone 6 No Display Fault

The water damaged iPhone 6 does not display after turning on. When the SIM card is inserted, iPhone 6 can receive calls from other phones, but there is no ringtone. According to our previous experience, because iPhone 6 has fallen into the water before, there should be one place that has been corroded causing abnormal display function. We can start repairing it from the damaged parts.

Open the iPhone 6 device and take off the motherboard, then take it under the 14MP HDMI Camera Stereo Zoom Microscope to observe the place where the water is flooded, we found the 2 4 pin of the J2019 display socket have been corroded. 

Check iPhone schematic diagram on WUXINJI Dongle, the 2 pin is PP_LCM_BL_ANODE_CONN backlight power supply, 4 pin is PP_LCM_BL_CAT1_CONN backlight circuit.


Carefully clean up the 2 pins, and then use QUICK 861DW hot air rework station to solder, now the iPhone can display normally, but touch function doesn't work.

After observation, we found that iPhone touch IC U2401 and U0900 audio IC all have water corrosion tracks. Disassemble it to check, the solder pad have been corroded. Clean up the corrosive solder pad, and then replace the chips.


Reinstall the iPhone 6 to have a test, the touch function returns normal too, it also has ringtone when receiving calls.

If you think the above information is useful and need more skills for iPhone repair, please do not hesitate to contact us on www.vipfixphone.com
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