After two fails (I don't know the reason of the fails) my controller now is in a strange state, it seems that the battery is in a low status-> I connected the controller to the charger but after one hour the screen continues to show me the low battery icon without the circle that recharge around the icon.
Do you have some suggestions? Is there a way to perform a hard reset or re-install the factory firmware?
I cannot turn on my controller, I see the background light working but no icon are showed by the controller

Thanks in advance