I updated with 18.3 beta, but lost video and audio option with that update, I tried to restore with itune in windows 11, got struck between. Forcefully turned off ipad, after two tries got off.... Off like blinked out screen... Not tried all tricks to on, can't on....please tell a solution. Used all your advices in internet. It was 90% charged, working superbly. So far no risk... Please help me. No charging icon, no sign of life. How can On?