Pixel 5 pin not working

[XAB235]

Hi guys,
i am trying to login to my pixel 5 (android 12 beta1), when i set the pin it goes back to the lockscreen.
If I try a wrong pin it says it is wrong.
I did a wipe data but booting the phone is again asking for the PIN. Digiting it it goes back to the previous screen (if I want to move data from preious phones).
I Can't use fastboot for flashing beacuse now i don't have enabled the USB debug.
Any advice?

Thanks

 

[XAB235]

I managed to flash via ADB but i am facing still the same issue.

 

[XAB235]

if i try to bypas the frp with the google account it goes back to the previous screen as weel.

 

[l7777]

have you tried booting to recovery and selecting factory reset from there?