Won't turn on after attaching to car charger
One day I wanted to try out a new car charger I got and plugged in my phone didn't hear the charging sound so went to look and the phone was off haven't been able to power it on since and have tried everything. I checked the output on the car charger with a meter and it's the correct voltage so i'm thinking maybe it was a defective cable. I opened the iphone to see if maybe the battery went bad all of a sudden, I get the correct voltage on 2 pins of the four I think the other two are for charging, so I don't think the problem is the battery. Does anyone have an idea what i should try to troubleshoot next or what parts i should buy from ifixit to try and revive my phone.
Thanks in advance.
8条评论
does it charge with pc/wall, is it recognised in itunes?does vibrate work? this will let you know whether it's a screen or dock problem.
由 pollytintop 完成的
Hi PollyTinTop no the phone does none of the above it seems completely dead, i t was fully charged at the time when this happened, it turned itself off and will not turn back on no matter what I do,I figured maybe the battery charger was defective and overcharged the lithium pack but as I said i measured the voltage at the output of the charger and it's a steady 5 volts I also left the phone alone for 3 weeks thinking maybe the battery got screwed somehow and needed to equalize but still nothing, i've tried all the tricks in the book to get the phone on tried dfu, hard reboot ect. and it just won't do anything.
由 thejunkmonger 完成的
If someone could identify what voltages I should have on the 4 pins of the battery pack at least I could eliminate a battery problem.
由 thejunkmonger 完成的
3.7mAh for the battery. Have you tried holding home then plugging in to iTunes?
由 pollytintop 完成的
Thanks Pollytintop yes I have tried that. I know the mah of the battery and the voltage i've had it in my hands whatg i'm looking for is what voltages i should find on which pins.
由 thejunkmonger 完成的
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