I have a Raspberry Pi 400, which is an overclocked Pi4, with a slightly different revision of the SOC.
This will not boot the amibian1.5ee.img image I have.
If I switch the Pi on with the card already inserted, I just get a black screen. If I switch the Pi on with no card, and then insert it... It boots to the configuration screen but it is frozen. The mouse and keyboard do not work.
I also have the actual Pi4, which booted the same card with no problems. While it was booted on the Pi4, I tried updating it using the given instructions. When this was done, I put the card back in the Pi400, and it booted straight away with no issues. Mouse and keyboard both work great.
I hope this helps someone, because the Pi400 could be an ideal Amibian machine.
I understand it's difficult to test, and the Pi400 has been out for less than a week so not a lot of people have it right now, but if there's anything I can do to help, then please let me know. I am happy to provide logs or test things out if necessary. Amibian is an amazing package and I am happy to help make it even better.
Thanks.
i tried updating my image using my Pi4, and it wont boot in my pi 400 :/