iPhone 5s completely dead board troubleshooting
Hi,
I've got a customer's iPhone 5 that is completely dead. I got 0A on power supply (connected on battery connector) whit power button pressed and released.
I tried hard reset, DFU mode, replace the battery, replace the screen and power on only the board. However the phone doesn't respond to anything. I take off the shields and checked the board, but it looks ok, no corrosion points, no components smoked.
I would like help to start the board analysis. what is the better points to check in this situation? What is the lines and the values that I need to check?
Thanks
Felipe
UPDATE: I just put the phone to charge and after some minutes the all phone warmed up.
Bu iyi bir soru mu?
2 Yorum
New Update: I put a new battery and new charging port and plugged on wall charger.
After a few seconds the coil L16 got hot and after more 1 or 2 seconds the coil L18 too.
Felipe Kashiwagura tarafından
remove and replace both, theres possibly a problem with the pmic as i had similar problems on a 5s
daniel tarafından