Iphone 5s not powering up.

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Iphone 5s not powering up.

Postby Solder balls » Wed Jan 18, 2017 9:44 am

Hi.
Im after a bit of help / advice if possible.
I have a 5s in for repair and after testing confirmed u2 chip was faulty went ahead and replaced it as I have done many times before.
This time the phone won't power up at all even from an external psu, even tried another u2 chip just to rule that out.

I have power from battery connections to pmu and always 1v8 is present but it looks like its stuck in shutdown state, no damage anywhere on the board or water damage.
Im puzzled by this one and if anyone has any suggestions would be grateful.

Thanks,
Paul..
Solder balls
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Iphone 5s not powering up.

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Re: Iphone 5s not powering up.

Postby Solder balls » Wed Jan 18, 2017 11:10 am

Ok, found it was a shorted diode on the power button circuit..
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Re: Iphone 5s not powering up.

Postby Salender » Thu Jul 05, 2018 4:43 pm

Its fun dude :lol:
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