How do I get the cover off of my Micro FERRUPS (3.1KVA and below)

Check the back of the unit and remove the grounding screw at the top center (if available)

Then move to the front of the unit. Look closely at the front label and look for a dime sized circle sticker on the main label of the UPS. Remove the sticker, and insert a Philips screw driver. Turn the screw until it makes a ratcheting noise, then turn it a couple of extra times. Grasp the side of the covers from the front, and pull. The top, side, and front will slide off of rails on the unit.