On this iPhone 7 we’ve repaired broken data line on a second layer of the logic board after the customer tried to replace the LCD screen and accidentally used the wrong screw on the wrong screw hole and after that, because the screw was long it damaged the logic board and broke the touchscreen connectivity data line between CPU to LCD connector and because of that touchscreen wasn’t working at all. so we fixed the broken data line and touch screen starts working again.
We’ve received this iPhone 6s from Tanzania, East Africa and customer tried to replace LCD screen and unfortunately he damaged the LCD FPC connector and backlight filter on this iPhone6s. so we’ve replaced the LCD FPC connector and also replaced the backlight filter with new one and after that phone starts working without any issue.
This iPhone 6 has been liquid damaged and after we’ve cleaned the board and tried to turn it on we found out phone doesn’t boot properly and when we’ve restored it with iTunes we received error 4013 and phone got stuck on iTunes recovery mode.
In this case, we have to remove the nand ic chip and put it into the nand programmer and program it again to fix error 4013. After all, we’ve reballed the nand ic and installed it on the logic board and restored it by iTunes Completely and phone turned on without any issue.
Fixing iPhone 6 with “no service/Searching issue” or technically we call it baseband IC issue after this phone has been bent. We have removed the baseband ic and fixed the broken solder pads and also by run the wire jumpers and then we’ve reballed the baseband ic and installed it on board and result was successful and now the phone is working fine with full bar signal.