The plastic clips on the outer edge make it difficult to slide along it and release the clips. Therefore, prying up on the inner edge is the easier option.

Pry up the middle inner edge of the handle cover with the opening tool to release the remaining clips.

Place a finger on top of the handle cover to prevent it from being forcefully ejected.

Remove the right handle cover.

To reinstall the right handle cover, position it on the back housing and press down firmly along the edges to engage all of the clips.