Help to restore iPhone 4 charge circuit please.
The iPhone charged at first, then one time after it draining completely I turned it on to find that it wouldn't charge, when plugged in the % would drop. To add to this when shut down it would now stay hot and drain.
I replaced the battery, dock connector and still no charging. Was going to get it sent off for a new power IC until I decided to open the motherboard up.
Under the metal casing I found a lot of green gunk/corrosion which I assume was from water damage.
This was located at the bottom near the antenna and blue capacitor but inside the charge circuits.
I cleaned this out with a toothbrush a alcohol, first it didn't help, but after leaving it soaked in alcohol for a bit and drying it it began to charge again!!
It now works, but charges incredibly slowly and is quite hot. Is there a way that I can make sure the corrosion doesn't come back and a way to hopefully speed up charging? It's all hardware related.
Is this a good question?