it looks familiair to mine x98 pro.
What i do when the battery is flat.
power on the tablet, red battery icon will appear, and it shuts down.
Then connect the charger, power on the tablet , bios screen shows up , and after that the tablet shows green charging icon, and shutsdown.
Then i leave it charging for about +/- 10min.
dissconnect the carher, turn on the tablet again.
as soon as i see the windows bootscreen, (white balls in a circle) i reconnect the charger, and i can use the tablet.
I just tought it is the way teclast works 😛 , so i didn’t spend any time on it to check what causes this.