Hello,
I tried to replace the screen and because the screws of the metal board near the battery connections were not coming out easily, I scratched the black surface of the logic board as you can see.
I didn`t go through with the screen replacement and assembled it back. It won`t turn on. Was this black coating important and why? Is it the reason why it doesn`t turn on anymore?
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The surface you scraped is fine. You need to remove that last screw on that bracket. Maybe a better tri-point driver is what you need. Once the bracket is removed make sure all the connectors are seated properly.
Does iTunes recognise the phone?
You might have damaged the lcd flex cable while trying to remove the screws. Go ahead with your screen replacement with the ifixit guide and all should be good.
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Hey thanks, it´s a grood suggestion, thanks. And you are correct, I actually had problems with the tri-fold screwdriver I had from the beginning. I´ll try with a better one and ckeck again.
Is there any part of that same surface that if scratch make the phone not work.?
for example the part with the little square on it.
@eym No. There is a metal shield underneath that. I have added a pic, the red has metal shields under the black stickers and to access the board components you need to remove the shields with hot air. The part in the middle is the sim tray also made of metal.
You have something else wrong with your phone. Does iTunes recognise it?
@imicrosoldering I am in the processes of changing the screen of the phone and encounter the same issue as sorinabogdan, but with the new screen in place. I scratched the area mentioned in my first comment and now the phone does not turn on. I will try cleaning the areas and maybe disassemble it and assemble it back to see if I missed anything in between.
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