You should be back to default BISO settings if you open your EzBook case, disconnect the battery, wait for ten seconds or so, plug the battery back in, close the case. Did the same thing after messing around with the BIOS (which is really picky), takes < 2 minutes
That’s a really quick and practical fix—sometimes a simple reset like disconnecting the battery can save a lot of time compared to troubleshooting deeper BIOS issues. It’s a good reminder of how sensitive system-level settings can be. Similarly, when configuring apps or emulators for android, like AetherSX2, even small setting changes can impact performance, so having an easy way to reset or start fresh is always helpful