How's it going I'd like to try to help you fix your device so there's not a factory reset button on the back of it but you could try hitting shift 9 to enter the list then press 3 to reset all and then the equal sign to confirm it then hit the AC button to return it to normal then shift AC to turn it off reboot it see if it works like that then if that doesn't work you may try to take out the battery and getting a paperclip so the positive and negative terminals can reach each other that will help take out some extra electricity let it sit for 5 minutes then replace your battery