Can anyone tell me if there is a thermistor inside the FP1?
My phone has been turning on saying that the battery is overheating (it isn’t) and won’t charge. I assumed that there was a damaged thermistor in the battery, but when I tried one of the third party batteries (new) that have been mentioned in the forum, I got the same error. This happened once before, a few months ago (original battery), and was solved by leaving my FP1 in the freezer over a few days…
Still coming up with the warning when I boot into safe mode, so I’m assuming that it’s not software (I also did a factory reset the first time this happened, which didn’t solve the problem - hence the putting the phone in the freezer…)
The first time, the phone did genuinely overheat (in my pocket, on a long bicycle ride, on a 36C+ day). Yesterday, it came out of nowhere, as the phone was sitting on the kitchen table.
(PS I put the phone in a sealed bag before putting it in the freezer - act of desperation.)
Are you sure that no humidity got inside and lead to corrosion inside the phone? Hmm… If I knew where the thermistor sits on the board, you could try to clean it with some alcohol, like some people do after a water incident (see waterwiki).