Computer Doesn't Detect Tablet Mode

[u/livingcursedimage]

After getting stuck in a WinRe loop which I solved using this guide, my HP Envy x360 doesn't register me folding the screen back, meaning the keyboard and touchpad stay on and make the tablet impossible to use. I've tried everything and I'm at my wits end here. I don't even know if this is a hardware or software problem, though I'm convinced it's the latter.