iphone 3gs problem after replacing it

[Nku]

I replaced my iphone 3gs battery with one found on ebay that was not working, so I put m old battery back, now my iphone starts heating and makes a strange sound when i connect 4-th connector(that comes from charger). Please help.

 

[timeconsumer]

I replaced my iphone 3gs battery with one found on ebay that was not working, so I put m old battery back, now my iphone starts heating and makes a strange sound when i connect 4-th connector(that comes from charger). Please help.

I would refer to the ifixit guide to make sure you connected everything correctly.

https://www.ifixit.com/Guide/iPhone+3GS+Battery+Replacement/1545

If you did and it's still having issues, you might be able to take it into a repair shop and have them fix it for you.

Another option would be to use Apple's battery replacement service: https://www.apple.com/batteries/service-and-recycling/

 

[darrylcn]

That's unfortunate. Hopefully it can be fixed. I used on of iFixit's batteries as a replacement in my 3GS in December, I'd recommend getting one from them if your phone is salvageable after this issue.

 

[msp3]

At this point, wouldn't it be cheaper to just upgrade to a 4 or 4s?