The SD card works fine in RPi3B
I moved it to RPi4 2GB, there is some text about some file needs to be updated for RPi4 (sorry I did not read it, as I thought the LibreElec did nor support RPi4)
Now I see that RPi4 is supported by LE9.2.6
Question: is a SD moved from RPi3b it supposed to boot on RPi4 ?