I had to switch off my phone due to a bug (no reaction from the phone, just a led orange was operating) NO answer from the phone. Impossible to switch it on. I tried severals procedure! No led, no vibes, nothing at all.
I connected it to my PC and received the informations ; qhsusb_bulk qualcomm, … !
Do you have informations about that problem? How could I fix it?
Planned obsolescence is rather something to be expected by other manufacturers, not FP.
I am pretty sure it is not as FP only has little room to maneuver in this highly competitive marked.
Yes, electronic devices may fail. Due to the high integration factor something like this can happen anytime.
I also think sticking to @AnotherElk advice is a good way to track down the fault and maybe solve it. With FP2 at least you have better chances than with any other mobile.
Without a working phone I have doupts there is a way to do. Otherwise e.g. the accubattery app targets to measure the battery performance with each charge/discharge.
But once you can get the charge process going as intended (solid red/yellow/green led) and increasing battery fill level image this a first indicator the battery is usable.