HINGE RAILS
Dell Latitude 13 (3390) 2-in-1 Hinge Rails Removal Tutorial

Learn how to install and replace the Hinge Rails on a Latitude 13-3390 laptop. This will take you step by step through the complete installation and replacement process. A Phillips head screwdriver and a plastic scribe are needed for this replacement.

 
Latitude 3390 2-in-1 Hinge Rails