Problem with flashing Pixel 6a

Hi i hope someone can help with my two Problems.

during the install process, after flashing my pixel 6a there is a mistake code after the process "Flashing factory images":

Error: Failed to execute 'claimInterface' on 'USBDevice': Unable to claim Interface.

Nevertheless Grapheneos is starting on my phone now. But i can't disable OEM-Unlocking.

Thank You!
Fabix

Fabix It sounds like you didn't finish the process or something got messed up during the flashing process.

My guess is that you didn't lock the bootloader. See the instructions here: https://grapheneos.org/install/web#locking-the-bootloader. If locking the bootloader fails, then you can try flashing again.

That error is because you have another program or service running on your PC which is interfering with webUSB. Restart your PC and open only the web installer.
If you're unable to disable OEM unlocking, that would mean that you did not properly follow the installation guide. Please read and follow it carefully step-by-step.