[SOLVED] Not working on new Pi4B

[schwidi]

I used a trick.
Since I still have an older PI 4 with Moodeaudio, I did an rpi update with SSH. The command is: sudo rpi-update
With this it installed the new 5.15 kernel it needs for the new rev. 1.5.
Then just put the memory card into the new Raspberry 4 and lo and behold it boots and runs fine.