Thursday, 6 December 2012

Iphone 4 itunes Error 21

So I have an iphone 4 here that when connected to power source (computer or A/C) it boots to apple logo, then within about 3 seconds it boots to the itunes logo.

I have tried to restore via itunes under normal, DFU and pwned DFU modes and when plugged to my mac i get the error 2001, and when plugged to my PC i get error 21.


There is no signs of corrosion on the board or water damage on the markers inside. and a once over the board with my viewing glass, i didnt see anything missing.

I have since change the Charge port flex and the battery to brand new and well as the LCD.

The phone only powers up when connected to a power source, even after replacement of charge port and battery.

The last strange thing to me is, the board appears to get very warm near the camera/A4 chip when the camera is plugged in, but less warm when you disconnect the camera.

1 comment:

  1. Did you ever get a response or solution to your problem? I have the exact same problem....

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