I have had the tab more than 18 months, no I haven't tried to upgrade the tab in anyway. Just went to switch it on and there was nothing tried recharging and that was not straight forward it just showed a grey battery doing nothing. but then eventually got it to show the blue battery charging. It looks fully charged and switches on but goes off again before loading the OS.
Hello sorry none of those solutions have worked I have on the tab screen now from the last one a picture of a black battery not doing anything.
is this while is still connected to the power supply?
no I don't get the recovery menu I get option to download a custom OS volume up cancel volume down continue
No all I get is the warning to download custom OS when I press those 2 buttons.