Chosen Solution
I got a samsung Galaxy S and it was working fine till one day i used the charger for a differnt phone. Then I pluged my phone back in and it would look as if it was charging. Then it said fully charged unpluge charger, so I did and it went back to 0% charged. So I pluged it back in for like 30 minutes and then unpluged it and it was still charging!! By halfway through the day my phone turned off and i just thought it died so when i got home i put it on the charger a couple minutes later i tried turning it back on and it wouldnt. Helpp please!!
It sounds like you have damaged a charging circuit inside the phone. If so, it would be very hard to repair yourself. You should take the phone to a repair shop.
you might blow out controller i.c. of your battery. or your battery might cause harm to charging i.c./ or/and power i.c. of your phone
YOU need to ensure that the voltage you use for charging does not exceed 6 volts and not bellow 4 volts
