These instructions did not match my laptop, since they did not cover the removal of the DVD drive and removing two screws underneath where the drive goes. Also, there seems to be a difference in the location of some of the screws on my laptop. Maybe Dell changed the Inspiron 5570 and there are different flavors of it. I found the video here to be helpful in figuring out how to proceed: https://www.youtube.com/watch?v=IhTu834o...

Regarding steps 5 and 6, I had to remove the battery (#6) to access the tab (#5) because it was underneath the battery.

I highly recommend the screwdriver and picks.