iphone 5 light problem after liquid damage – lot of problems ! its some previous iphone pone hardware strange problem

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iphone 5 light problem after liquid damage – lot of problems ! its some previous iphone pone hardware strange problem

On January 27, 2015, Posted by , In iPhone, With Comments Off on iphone 5 light problem after liquid damage – lot of problems ! its some previous iphone pone hardware strange problem

Hi guys


I received an iphone 5 liquid damaged. After cleaning up the board I managed to get the phone to power on but no light on the lcd.

After measuring a few components I found L3 (light coil) to be open so I replaced it.
When I powered on the device the light worked for one second then went out again. I measured L2 again and found it open circuit again, so I have a short some where. Ive measured the coil pads one side is grounded. Ive check D1 and its working. So could the fault be the light driver ic U23 ?

If anyone can to be helped and point me in the right direction on how to solve this issue .
Thanks very much.

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