After water damage, after cleaning, don't turn on and don't charge
I have a big problem. I've buy an iphone 4 at ebay. The seller says, that the iphone was dropped in a toilett.
First one i took the logic board and cleaned it in a bath of an isopropanol approx 70 % and in an electrical cleaner called "KONTAKT WL Universal Reiniger für die Elektronik universal cleaner for electronic.
After this i assembled the components and my phone is do nothing.
- I can`t turn it on
- no charge
- no initialize with itunes
but i know that the display touch are allready. I cant see any kinds of corrosion ore damaged contacts. Only that can i see is that the soldering joints are a little bit darker as a new logic board.
- switch power on / off is OK
- Battery is ok
- Display / touch are ok
- cable to charge is ok
One thing what i can see is, that one smd component near the headphone jack connector was one contact detached.
Who can tell me for what that component is? I dont think that can solve my problem. I think it must be near the power supply.
Please help me!!! I don`t know what else i can do.
I offer my thanks in advance.
the logic board on the top is the board with no function. the upper board was only to check the components with the top one.