rpi-update creates a backup, but you'll need a Linux system to read and restore it - see https://github.com/Hexxeh/rpi-update/issues/273.

@mitu

Only as purely information:

Yesterday i have turned on my Pi4 for pass some hours on retrogaming.
I do my usually and periodicy check for update by retropie_setup including the kernel and os update.

During that i have noticied another update to components rpi-eeprom....... this time, if correct, as version 16.x.

When all update it's completed, exited from retropie_setup and back to emulationstation i have open the terminal whit F4 and i have tryed to check the status of eeprom by command:

sudo rpi-eeprom-update

Immediatelly after that i have noticed there's an update on side VL805 in pending.....
I don't have touch anythings...... i'm not triggered this update manually how i have do whit the booloader side.

I thinks, in someway, the autoupdate service it's now works.........

From same Terminal i have do:

sudo reboot

Waited my Pi4 reboot whiout any issue...... and now by Bootloader and VL805 as been update to current and last stable release.

I think they fixed that.... because, in the pass, although there were updates it seemed to skip them.

I've just had my head turned by the Pi4 B and reading this news feels like the kick I need to buy one, it sounds even easier to get this running. Can't wait, hope the Pi's come back in stock soon!