data recovery white screen and cannot connect to PC due to accessory unlock
daughters iPhone 8 gets white screen, says press home button to recover data and then that it didn't work and need to restore from back-up - however I cannot connect to iTunes because I need to unlock the phone to allow the accessories and it is stuck on this white screen. Have tried hard rebooting the phone. Connected via multiple phone cords and verified that they are working with my other iPhone. Unfortunately on my iPhone that is working I get a message to "Trust this computer" which I would also not be able to get past.
I am at a loss.
iPhone 8