BalenaOS and hardware rev 1.5 of the Pi4

Our friends at Raspberry Pi recently released hardware rev 1.5 of the Raspberry Pi 4 Model B. We recommend using balenaOS v2.91.1 or later as that contains the updated firmware. BalenaOS v2.75.0+rev1 and earlier will not boot on this hardware revision of the board.

For details, including how to identify if you have hardware rev 1.5, please see new hardware revision of RPi4