So I have an Acer Nitro 5 (Specifically a AN517-51) and I recently upgraded the BIOS on it to see if that would fix some intermittent issues in Windows. It didn't; however, the latest BIOS (version 1.29) seems to have disabled a LARGE number of options in the BIOS. Most importantly, it seems that this has disabled my ability to change the mode of the SATA controller and I can no longer disable Intel RST.
This is problematic as I was dual-booting the system with Ubuntu Linux, which was running just fine when I was able to run in AHCI mode. I'd like to be able to disable Intel RST again, and I was wondering if there was a way to change that back? It seems a simple enough thing to ask to unlock, since it was previously unlocked. Or am I simply missing an option that currently exists to unlock it?