[Q] Rockchip 3066 tablet says battery at 100% even with no battery

[nyffe]

As the title says, i have a Rockchip 3066 tablet with battery problems. It says the battery is at 100%, even after firmware update. So i decided to unplug the battery, and when starting the tablet with the charger plugged it says the battery is at 100%.

This is really strange, i have no idea whats wrong, someone have any ideas ?

Android version 4.1.1
Kernel 3.0.8+