Using a Phillips #1 Screwdriver, remove the four 11mm screws that surround the edge of the left side bottom shell piece.

Using a Phillips #1 Screwdriver, remove the four 13mm screws that surround the edge of the left side bottom shell piece.

The order and placement of the 2 types of screws is mirrored for both sides of the bottom shell.

Pull back and set aside the left bottom shell halve. This shell half is still wired to rest of the hoverboard.