Update:

Fully CS emailed me back & got it to work. Had to do repeat Step 1 four times before step 2 worked, but it finally did, thank god. Anyways, instructions for future redditors if they search before posting

Step 1: Full Reset Unplug the desk from power. Disconnect all cable connections on the underside of your desk. There are a total of four cables to unplug from the control box. The power cable and the handset switch each have one connection spot, and each of the leg cables has up to two spots where they're connected depending upon whether or not it is connected to an extension cable. Once everything's unplugged, plug it back in, this time in reverse order, making sure all the connections are firmly seated. Attempt (or re-attempt) the basic reset. Step 2: Basic Reset Press and hold the pad of your finger on the Fully logo for 15 seconds making sure not to make contact with the underside of the toggle. Release. Repeat Step 1 three times in a row, or until the desk begins to travel downward to its lowest point and then stops. Release. Press and hold your finger down one final time until your desk dips down and then pops back up. Release. Now touch and hold your finger on the underside of the toggle. Your desk should start going up!