Hi10 Plus wont power on unless I plug charger in

I have a hi10 plus that recently fails to power on when I press the power button.

The battery is fully charged.

I press and hold the power button until the LED turns red. It stays on 1-2 seconds and nothing happens. Before it would boot after the LED turned off.

As soon as I plug the charger in the LED starts blinking and the tablet shows the battery symbol is almost full. I can hold the power button and the tablet boots fine.

Anyone experienced this?