Lack of notice does not facilitate assembly! Think to separate the bearing tabs (which appears as a clip) by crossing the sticking points to adjust their position. The spring system is clipped into the grid. In doing so the system is perfectly stable and easily adjustable if a little limited in lateral. The real problem is to be replaced by the hull of the S4 than the media if it can not secure the unit! This manipulation is binding but the result is good. This shell may withdraw support in two places: the room with 4 legs is difficult unclipped but the slide on the ball is easy operation but leaves a bulky and unsightly phone.