I've just spent my entire Saturday trying to upgrade from OpenElec to LibreElec.
I have backed up all my settings and so far I have tried:
Downloaded the generic version for my Self-build HTPC, I then transferred the file to the upgrade folder, rebooted but nothing was recognised and update did not begin.
I then created a USB Installer on multiple USB discs but each time no upgrade begins. I select the relevant boot device but no update starts, it just reboots and gives me the device selection option again.
Any ideas of how I can overcome this?