Ipad flashing white logo
Hi All, My son's iPad Pro (128gb 2 gen) started displaying flash white apple logo when we were on holidays, we booked a Genius Bar appointment and when we arrived at the store, it miraculously witched on without any intervention from me or the tech guy. He checked the hardware and everything was fine. A week later, the same thing occurred. no matter how many restarts I tried nothing worked. I let the iPad discharge naturally and recharged and recharged it fully. Nothing happened. then 2 days later it started working again. So I connected it to the computer to do a full restore and everything was going ok but near the end it reported an error (4013) and said unable to restore iPad. Anyone have any advice. I tried third party Reiboot and I bought iMyfone Fixppo software and that didn't work either. Thanks for all your help
iPad Pro, iPadOS 16