What, you might be asking, is a pentalobe? It's a sort of screw head - a very annoyingly rare screw head, one that's generally only in place to make taking devices apart more difficult. The screwdriver you're going to need to use to get this screw out is available to the public - it's no secret - but why has Meizu begun using it? And why Huawei? Has the screw suddenly become less expensive to use, or is there a more obvious reason?