Why is the transformer not charging?

Question

Iron

Hello, the machine is similar to the one in the picture
. When connected to the charger, the indicator lights up red, i.e. is charging.
It turns on when you hold the power button, but it can not turn on, because the charge level is low.
If you press the power button, it shows the charge level on the screen.
And it just can't charge, has anyone else experienced this?

Answer 1

Weight options:
1. Bad charger.
2. Bad connector.
3. Faulty charging chip on the tablet board.
4. Faulty locked battery.
What to do:
1. Diagnose the charger.
2. Check connector.
3. Check the charging chip.
4. "Swing" the battery on the laboratory power supply, try to start and see what the specialized software says about the battery. Replace battery if needed.

Answer 2

It happens because the OTG connector.
At charging, the second and third contacts must be closed ...
And charging is desirable in a couple of amperes, at least. (The first t100s came with a 5 amp charger.)