spring-onion Dani98 Error: Failed to execute 'claimInterface' on 'USBDevice': Unable to claim interface. You likely had another installer tab open. Have just the one open and close everything else that isn't necessary.
Dani98 I have tried the webinstaller on the phone, it did not work. After that I connected to the Notebook again and tried again. AND IT WORKED!!! I have changed nothing... BUT IT WORKED, I have no clue why... THANKS for helping me!!!
Dani98 Thanks for reminding me :-) The number shown on boot is the same as on the webinstaller: 08c860350a9600692d10c8512f7b8e80707757468e8fbfeea2a870c0a83d6031 The auditor app says: Pinned Security Level: High - StrongBox Hardware Pinned OS: GrapheneOS (unmodifed official release) User profile secure: yes Since here: https://attestation.app/tutorial is no advice what to expect as answer, my guess is, that everything is fine :-)