Iphone 4s motherboard overheating

Discussion in 'iPhone Tips, Help and Troubleshooting' started by MosesTheTool, Apr 29, 2013.

  1. MosesTheTool macrumors newbie

    Joined:
    Apr 29, 2013
    #1
    Hey people.
    I purchased a Water Damaged Iphone 4S on eBay, to try and rescue it, it was in delivery for like a month, and i don't believe the owner tried the "rice trick".

    Anyway, I followed the instructions on how to rescue it, I disassembled it and took off the motherboard covers, put it in Isopropyl and brushed it with a clean new toothbrush. I cleaned the connectors as well, replaced the dock connector and replaced battery.

    The phone is powering on, i managed to restore+update to 6.1.3, but then I noticed it is overheating.

    The overheating occurs only when the battery is inserted, when I plug the phone without the battery to the AC or USB+Comp the motherboard doesn't heat up. This is really strange and kinda out of my league, I am from Israel so I don't have the option to "take it to apple", and I don't wanna spend loads of money going to a tech, because I fix phones for fun.

    I would greatly appreciate any professional advice. I researched and couldn't find any simple solution. One solution i found was to solder some new components on the mother board, and unfortunately I do not know how to solder.

    P.S.
    The battery doesn't charge, when I turn on the phone, it heats up and drains the battery, when I plug it in AC or USB it shows the sign of charging, but the battery keep going down and not up.

    Thanks in advance!
    -Michael.
     
  2. MosesTheTool thread starter macrumors newbie

    Joined:
    Apr 29, 2013
  3. Mrbobb macrumors 601

    Joined:
    Aug 27, 2012
    #3
    Nobody should suggest u take a water-damaged phone to Apple. Even if they are willing to touch it, the cost would be prohibited.

    Sounds like the charging circuit is damaged, that's all I have for you. If you know exactly what components to replace I guess find somebody with a bench-top soldering equipment.
     
  4. macingman macrumors 68020

    macingman

    Joined:
    Jan 2, 2011
    #4
    How hot is it actually getting?
     
  5. MosesTheTool thread starter macrumors newbie

    Joined:
    Apr 29, 2013
    #5
    My brother is an electronics engineer, but he said the equipment for such repair would cost like 3 new iphones.
    Thanks for the reply

    Seriously?, umm let's say if you put your finger on it, it isn't too comfortable.
    Like - "if you don't disconnect me now i will explode" hot :(
     

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