in case you’ve forcibly rebooted the iPhone 7, you’ve restored the iPhone 7 from a backup, you’ve set up the iPhone 7 as new, and you’ve got repaired the broken screen and lcd, and the contact display screen continues to be unresponsive, it’s time to exchange your wondering and look for a completely extraordinary answer.Rewatechnology.com here presents you a refreshing logic board solution regarding to the unresponsive touchscreen issue of iPhone 7.

1. Phone 7 Disassembling

Remove charging port screws and detach the display assembly.Disconnect flex cables and remove logic board screws.Take out the logic board.



2.Iphone 7 Malfunction Diagnosing

Roll out the maintenance drawing for reference.



Test resistance of the display assembly connector with digital multimeter.


Pin 10 worked as AP_TO _TOUCH _MAMBA _CONN _L signal. The signal was connected with CPU AT2 pin via inductor FL3904.

Circuit between pin 10 and inductor FL3904 displays normally.

Test resistance from inductor FL3904 to CPU, the device displays normal value. Then we can draw the conclusion that inductor FL3904 was damaged.

3. IPhone 7 Malfunction Repairing

(1)Take down the inductor with soldering iron.

(2)Solder tins on the copper wire. After that, connect the two bonding pads of the inductor with the copper wire. Then cut off the rest of it with a sculpture knife.

(3)Test pin 10 resistance with digital multimeter again, this time we get a normal value, which means the problem has been fixed.

4. IPhone 7 Touch Screen Function Testing

Clean the bonding pad with PCB cleaner.Assemble the phone and test.Touch function back to normal


Rewatechnology now grows to be a professional sourcing solution provider in this dynamic changing cell phone industry. We have years of experience on providing wholesale services upon an extensive range of spare parts such as mobile phone display, cell phone parts, iPhone Parts,Samsung Parts,macbook parts etc, as well as accessories, repair tools and materials. From customers’ perspective, REWA deeply understands the importance of the logistics supply of spare parts and services for repairing and refurbishing business. Therefore, we have long been striving to provide reliable, hassle-free services and top-level solutions to different customers including Refurbishing Factories, Wholesalers & Distributors, Online Resellers and Repair Facilities.