Qubes failed installation

I purchased a NitroPad V56 with Qubes installed. The initial configuration failed. The error message said to sudo qubesctl --all state.highstate in dom0. But qubesctl doesn’t exist and after rebooting I get the error message Invalid signature on the kexec boot params.

How can I fix this?

Hello,

please follow our guide in order to resign the boot params:

https://docs.nitrokey.com/nitropad-nitropc/heads/system-update