My battery suddenly fully depletes when below a certain (and not always the same) charge threshold and afterwards recharging through the micro USB plug is no longer possible (the circular indicator at the bottom of the screen blinks, but the battery does not get charged). The battery has to be taken out and has to be charged through an external charger.
I have already changed battery and battery connector but the problem remains.
Is this a known issue? And would it be rather motherboard or OS (Ubuntu Touch OTA-14) related?
I realize this is a Flyme-oriented forum, but I have not a lot of other channels to turn to. So, thanks for any advice!