Water damaged iPhone 5S doesn't power on charges at 0.33amps follow up
Hello there, I recently purchased this water damaged iPhone 5S.
Upon receiving it, I immediately took it apart, and got as much water as I could off it, brushed the connectors, I attempted on removing the EMI shields but failed to remove it, so I didn’t proceed on. I tried to turn it on but received nothing. I checked if the screen on it was working by connecting it to a different working iPhone, and it indeed worked, I do not know about the battery, so I decided to put a working battery to see what would happen. Still nothing, even connecting it on a charger for several hours, nothing. I decided to put this amp meter. This device where you plug the device in to a USB wall plug and connect the lightning USB cable to it then to the iPhone. As soon as I done that, I saw a reading of 0.33 amps and 5 volts. What could this mean?
UPDATE: I have purchased isopropyl alcohol 99.9%, I used it on the logic board but EMI shields were still intact to the phone as I was scared to remove them. First try putting the alcohol in for 5 minutes, brushing the connectors with alcohol and rinsing the board with water for less than 5 seconds, letting it out to dry until more than 24 hours, it didn't work. 2nd try after doing all of that, when I connected a different working test battery, I started hearing sizziling sounds, and the amp showed 0.08 and not 0.32. I was scared so I removed the battery and just waited, connecting the battery again, as soon as i did it, the phone started constantly vibrating for no reason whatsoever. The 3rd time I did it, nothing happened really, it just stayed art 0.32 amps, please help me.
UPDATE 2:
The A7 chip is overheating really badly, anything I should do? I have sued isopropyl alcohol but that didn't do the job unfortunately :( This only occurs when iPhone is connected to the battery but not with the charger.
Please help me, this is a follow up from my previous post 3 weeks ago, unfortunately, after updating the people who were trying to help me, no one responded.
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4 commentaires
Why did u buy a water damaged phone...
On update one sounds like u left water on the board and fried something further, probably making it further dead lol
Take a thorough look at the board through a microscope then connect it to a dc power supply and see what it does.
Testing it with a usb ampmeter doesn't really do much other than tell u if its drawing power from the plug.
par c9679
0.32A drawing doesn't really mean it's charging..that's some short to ground that needs to be disposed of.
par arbaman
If you cannot remove the shields then this is a lost cause. You cannot know what damage is under them without removal. So sorry
par iHeartMacs
Sorry but I have to agree with the 3 above, this is component level repair that requires experience in micro-soldering to do board repairs related to CPU.
CPU shorts are generally a dead end, dead CPU = paperweight.
par Ben