Fourth generation iPhone. Repair is straightforward, but the front glass and LCD must be replaced as a unit. GSM / 8, 16, or 32 GB capacity / Model A1332 / Black and White.

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iPhone 4 just apple logo and turn off

iphone 4 just apple logo and turn off or not connect to pc

water damage .

i am cleaning with acrylic but same problem.

Answered! View the answer I have this problem too

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try to dismantle it completely then clean it properly. then try to restore it

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when you say you are cleaning with acrylic, exactly what are you using?

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Here is the guide that I would use to deal with the water damage. Use these guides to help you with the task. Once you got it accomplished, reevaluate and see what real, if any, damage you have. Good Luck

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sounds like a battery problem too.. they don't like water at all.

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Water damage can be a tricky one and the success rate depends on your ability to spot micro corrosions and how well you clean the board. Also other components may need to be replaced like the battery and charger port. Once you disassemble the the phone you should drop the board in an ultrasonic cleaner with the proper amount of alcohol. one thesis done, blow it dry and reassemble. You should use a new battery and charger port when reassembling, it best practice. Once assembled try top reform a hard reset, given you get a apple logo to show up. Try this treatment twice. If you do have to do it again, throw the board under a microscope and make sure there are no fractures or burnt resistors on the board. Good Luck!

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The iPhone need some power which isn't provided by the cable, to turn on. With the water damage, the battery isn't working properly, so you need to replace it, and your phone will work fine.

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kyaw tun than will be eternally grateful.
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