Ubuntu 20.04.6 LTS apt problems - how to upgrade f/w?

[MR ZenWiz]

On Tue, Nov 26, 2024 at 1:33 PM Bo Berglund <bo.berglund at gmail.com> wrote:
>
:
>
> Active lines are:
>
> GRUB_DEFAULT=3 <<<<<<<<
I believe this should be set to 0 to default to the most recent
kernel. Yours is set to activate line 4 (0-origin) in the series of
available kernels.

HTH.

MRZ