Dead iPhone screen after trying to fix home and power button
Hi all. I tried to fix an iPhone 3G affected by the following problems: home and power button don't work, broken screen glass (but LCD still worked great).
At first I disassembled the Iphone (following the iFix's step-by-step guide), getting off the LCD screen and the glass. Then I did the same with the logic board. Finally I noted that the flex circuit was almost cut, near the power button, so I decided to reassembly the phone as there's no solution to fix this without a new flex circuit. During the reassembling I noted a small piece of metal connected to the logic board, in proximity of the label "do not remove", here it is (circled in red):
I don't know what it is (and I found nothing about it on the Internet) so I repositioned it as better as I could.
When reassembled all the parts, the screen didn't work anymore, in any case.
I don't know what to do. Is the position of that piece of metal I showed you? Or the iPhone is simply turned off and it needs to have the power circuit changed? Or something else?
Thank you in advance
Simple things first. Try a hard reset.... Hold power and buttons for 10 sec until apple appears, release buttons and allow to reboot. This should make phone recognise new hardware. The metal prong is the antenna ground, it is perpendicular to board and should touch onto bezel.. If it isn't you may find signal is poor.