I too can't get the iPhone 3GS to work after replacing the battery.
The install seemed to go well. Once back together only get red battery when plugged into wall, then quickly goes to Apple Logo. New battery charged for over 3 hours with not changed. Does not seem like battery is charging. Apple logo and phone turns off immediately after disconecting from wall charger.
iPhone does nothing if plugged into the computer. Will not charge or turn on, don't see anything on iPhone screen, Is not recognized by iTunes.
Disappointing that there are no trouble shooting steps included with the battery changing instructions.
Have read lots of suggestions but no found no definitive answer and solution to problem. Does anyone know what the issue is and how to resolve?
Phone actually connected to iTunes once and 'activated'. Was able to make a call, text, web, etc... Stopped working after about 1 hour. Now back to same condition. Only gets to Apple Logo and will not reqister when connecting to iTunes.
Thanks for the info. Re-installed old battery and phone is working again. So dissapointing to spend so much time on this due to a defective new battery.
I am on ios 5.01. If it's not a defective battery how are you able to change it?
So if I understand your answer Pollytintip if I downgrade my phone back to 4.3.* qand put the new battery in, it should work? If yes, if I after that I upgrade back to 5.01 it should be fine?