HA Yellow: can't reinstall HAOS (even after rpiboot)

[zenith mortar]

Hi everyone, just after 15.0 update my HA Yellow became unreachable so I decided that the easiest method would be factory reset and restore from the backup.
I did two buttons (red + blue) reset and created a bootable USB and all went good. Upon restoring from the backup, my HA went dark and it became unreachable in the same way it was before.

So I decided to do the factory reset once again, but this time it didn't worked: web page unreachable.

I've googled a little and found an rpiboot method and did all what was in the manual, but the outcome is still the same.
http://homeassistant.local:8123/ is still unreachable despite a heart beat yellow light.

Have I done something wrong? Any way to get HA work again?

[deft sandal]

Can you connect via serial to see what's actually going in?

[zenith mortar]

will do, give a sec

[deft sandal]

Check ha network info. Can you reach the observer URL?

[zenith mortar]

I couldn't, but let me check that again

[deft sandal]

ha banner shows the URLs too.

[zenith mortar]

nope, can reach the URL. Now I can't even get past this when trying to log to cli

I will power cycle, maybe that will help

I've reached login, but for some reason it won't let me user root and no password

homeassistant login: root
Password:
Login incorrect```

after another reset - it worked, checked ha banner and observer URL - not reachable

[deft sandal]

What did ha netowrk info say?

As for logs you want to check ha supervisor logs and ha core logs.

[zenith mortar]

Will check in a sec. Reflashing again atm

After reflash, I have finally see the installation screen

now I wonder if I should restore from the backup

is there any safe option to restore?

I think that backup is causing that issue