Hey guys,

here the whole story, it will be a long one so i hope some readers will finish it. I stupidly let a few drops of water get on the home button of my iPhone 3GS. As my iPhone was close to a window i opened, water did condensate on the inside...

So, i turned it off as soon as i saw it, put it in rice for a few weeks, and tried to turn it on again. Didn't work out quite well, I spare you the details.

So, I ordered a new battery and a new dock connector and replaced the, likely, broken parts. Tadaa, iPhone did turn on again, I could do everything, calling music photos... Unfortunately, this did only last as long as the battery who came partly charged was full. It did not recharge.

After battery was at 0%, the iPhone did not start anymore. Plugging it into USB, no power, it doesn't start. If I plug it into a power socket, it does start autonomously and stays online as it is in the socket. As soon as i remove it, it dies immediately.

Interestingly, the battery always shows at 100% when plugged in, and the charging symbol is active.

Close inspection of the logic board revealed that the back of the logic board shows a small 'burn', on the right side of the big golden thingy in the middle of the board, the backside of the Infineon SMP3i and digital baseband processor if i understand correctly.

So, basically, I got no idea what to do anymore.

- Warranty is gone due to water (sensor changed color)

- battery and dock connector replacement did make the iPhone start, but battery still doesn't charge.

In my (unprofessional) view, there is a problem with the logic board, maybe a fuse, related to charging the battery. As logic board replacements are not worth the money, this would mean dead iPhone... My soldering skills are sufficient for elephant size circuit boards, but not for this kind of work needed. In addition, i do not know what exactly is broken.

So, for those who finished this wall of text, thank you first. If you got any ideas, I would appreciate to hear them.

Regards, WilksLambda

PS: I did reassemble the iPhone 6 times and checked every connection carefully, again no effect on problem