To solve the puzzle, one has first to unlock it, then bring it to next-to-solved position, using normal F-Skewb-solving methods and then finally make 4 turns to lock it again in the solved state. The second part is going to be somewhat confusing and will require some imagination, because you have to match different colors on one face.
Additional parts required: 4x screws M3x8, stickers.
10.284 w x
7.996 d x
4.049 w x
3.148 d x