After reverting the firmware to SD boot, and trying to boot libreelec from SD, it still won't boot libreelec for some reason. I am using the LibreElec writer with "Raspberry pi 4/400" selected, and my device is a 2gb Pi 4.
I tried writing LibreElec to a SATA SSD using the usb sd writer, and connected it to my pi via a usb 3.0 to sata adapter.
The pi doesn't want to boot the LibreElec install, despite me writing the usb boot firmware, and the Pi managing to boot other OSs from the SATA SSD just fine.
Does LibreElec support being booted from an SSD on a Pi 4?