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The phone was dropped in a pool. It went 10 feet deep but was fished out right away. My friend put it out in the sun to dry for 2 hours.I dried it on the inside by carefully drying the internal parts excluding the display area with a paper towel, then putting it a mixture of rice and packets of silica gel to absorb any left over moisture, but i didnt receive the phone for about a day, so there wasnt much inside. i replaced the battery and it turned on but it would burn up charge faster then it would receive charge. also the antenna dead, i think that might be related to it, but I put it in airplane mode and it still continued to use juice. Perhaps a short within a non essential part? I have disassembled the phone and reassembled it when i was drying it. I was able to turn it on and it worked but it burns energy faster than I can charge it. I have tried disconnecting a few parts and then plugging it in but it still heats up so it isn’t the camera or the buttons.
vanish172, even so “10 feet deep but was fished out right away.” I suggest that you clean it. It really does not matter how much water exposure it had, or how long the exposure was. what matters is which part was exposed. A “mixture of rice and packets of silica gel” are a great first aid, but they will not prevent corrosion. Disassemble your phone use this guide, and clean every part, connector and cable with 90%+ isopropyl alcohol. Make sure that you remove any EMI shield. Use a soft brush to clean the connectors and cable ends properly. Check for missing or burned components. Once it is cleaned, replace the battery. After that, reassemble your phone and re-evaluate. Until you know for sure that it is clean, any answer will most likely be a guess only. Hope this helps, good luck Update here are a few items you want to check as well. I hate to refer to those as fuses, but they most certainly control part of the charging circuit. First one is reference designator L3, it is a FERR-120-OHM-1.5A inductor. L4, right below it , has the identical value. Next would be the charger inductor L28 2.2UH-1.8A-155MOHM. All of these are pretty much available at mouser. com or digikey.com. Hope this helps, good luck.
It was the WiFi Bluetooth chip that was acting up, I cleaned it once and nothing changed. Cleaned it a second time, turned the phone on without the EMI shield and its not overheating.
Hi After a long time of diagnosing the same problem on my iphone 4s finaly found a solution and fixed the fault by changing the charge port with a new one I suggest you do the same thing and change the charge port Regards
