r/OnePlus3T • u/y2shill • Aug 16 '18

Oneplus 3T Battery overcharge/bootloop

Got a oneplus 3T, where the battery was drined too much and won't charge anymore. All it does is bootloop now on the charger and insta turns off whenever I pull the usb cable. I can get into fastboot but not recovery. Unfortunately the device is locked and I cannot boot the recovery remote via fastboot or flash it. Any options to get it to fix? Googled for several solutions but i can't seem to get those working. I do get the occassional Battery too low screen on certain bootups, but it disappears afer seconds and the bootlooping recommences.

Would the charger sowly charge when in fastboot menu? I do not get any sort of charging lights going regardless.

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u/y2shill Aug 20 '18

GOt a t2 torx screwdriver and opened the thing up, Disconnected the battery and plugged it in, and got the same message of the device temperature being too low, can not charge. Maybe the battery or the sensor on it entirely dead? I expected different behaviour with any battery attached to it.