11-09-2020, 04:32 AM
(11-09-2020, 02:36 AM)LinAdmin2 Wrote:He can test the hardware by installing the postmarket factory test build on an SD card and booting it. But the fact he is able to run an OS, and the battery varies wildly, plus no charge over 30 when he was getting 100 indicates it's most likely the battery, not the hardware or OS.(11-09-2020, 12:25 AM)rocket2nfinity Wrote: You may have a defective battery. The Samsung J7 battery, as listed in the wiki, is easy and cheap to obtain in most places locally.It is impossible to decide whether it is the battery or the charging circuitry or the software.