the iphone 5 I am working on, the old battery was so bloated (it belongs to my other half, & three weeks a month we're...

same exact thing. I was convinced I'd broken the connectors inside & got the over-temp warning because of that. anyway, the phone boots just fine (apart from the temp warning), finds 4G & wifi, but only offers emergency calls. full restore from itunes made no difference. I will try the old battery again, though I can't leave it in the phone because it's swollen & has already caused the display to delaminate. how the !&&* does it know it's a replacement battery? dear god, this is worse than epson & their printer cartridges that cost more than a new printer! :-/