Pinephone crash after screen connection

Hi,

I have post in french, but now I will try to speak that in English.

I have a pinephone , he start, ask the password and next i have a screen with the menu possible and the application phone and the application adress book but this last screen crush twice time (3 fois ) and next i can go to the screen where we can (ask a password and next we can go another to the screen with … and it rebegin

I can reboot : not change
Where can I go to grub? How can I use a command ?
And what can I use If I can use a command ?

Will I do reinstall all ?

Closed due to crossposting as per forum rules