iPhone 4 No Display But Lights Up (Backlight working)
I recently acquired an iPhone 4 32GB. When i first received it it was totally unresponsive.
After replacing the battery and scrubbing the logic board with (90% Proof) alcohol and replacing the screen it turned to life. However i could only see a black screen, it did light up but with no apple logo appearing. It is highly visible so i know it is not a backlight issue.
First thing i tried was to do a hard reset - Power and Home for 10-15 seconds, with the result being a reboot but the issue still persisted. Then i removed the logic board and repeated the alcohol clean to make sure no corrosion remained.
I have tried 3 different screens which all work on other phones. Two of the screens show a black screen and the other a white screen (it had been slightly damaged).
I have restored in DFU mode and downgraded from 5.1.1 to 5.0.1. I have also tried different batteries as well as putting the logic board in a completely different phone to no anvil!
The only thing i haven't tried is soaking the board in alcohol. I may try this unless anyone can offer some other tips/advice as to any solutions I could try? I have already search the deepest depths of google but no method seems to work!
Any help in the slightest would be appreciated!
Many Thanks in Advance
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