Place Visor Edge face down.
Notice the tab connecting the flip cover to the back of the PDA.
Gently push tab forward.
Once flip cover is removed, turn over and remove the four 3.9 mm screws connecting the hinge.
Gently pull away the plastic hinge from the cover.
Turn the hinge piece on its side or use a screwdriver to pull out the spring.
Reinsert new spring.