Rpi4 8g update and full upgrade now keeps rebooting

just bought a piicodev quality air …

ran thonny

couldnt find microbit (tho showed up on desktopp)

then i decided to shut down reboot just the pi all others disconnected to update

sudo apt update …
sudo apt full-upgrade…

now when reboots i can interupt with shift key and see the noobs screen initialise

but dont know from there unless i do new install

plenty of space

cant get back to terminal

cheers Ian

Hi Ian,

I haven’t run into symptoms like this before. To get a better idea of what’s happening, I’d open the boot partition on a non-Pi machine and remove the words “quiet” and “splash” from cmdline.txt. Then look for error messages in the output and let us know what you see. Send photos if the messages are easy to catch, a video if it all moves too fast.

Keen to get to the bottom of this one with you!

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there are a number of errors and things not found like firmware?
an error 000000000004
recover4.elf not found
recovery.elf not found
start4.elf not found
start.elf not found
i reinstall anyway
but lunch first

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Here are some threads where you may get some clues: