Chosen Solution

I’ve tried to unscrew it for literally 5 minutes. I’m sure it’s loosened but it doesn’t lift. It’s just stuck in the cover.

it has no hard drive in it, give it a smack. alternatively, do the other screws and it should still come right off as the screws are not anchored.

Oops! I forgot to check if we have a guide, just follow this guide. Dell XPS 13 Back Cover Replacement