Mechanic Middle Layer Tin BGA Reballing Platform Set for iPhone X to 17 Pro Max solves one of the most repetitive problems on a busy repair bench: getting even, reliable solder coverage on the middle layer of an iPhone motherboard without switching between multiple single-model fixtures. The set centers on a magnetic base that locks the motherboard flat and stable during the tin planting process, so the board cannot shift while you position the stencil over the middle-frame contact points. Strong magnetic adsorption keeps the stencil pressed tightly against the board, which stops solder paste from bleeding under the mesh and keeps every ball on the mid-frame uniform in size and height. Technicians working across mixed repair queues benefit most from this design, since a single base and a set of interchangeable positioning plates and steel mesh stencils cover iPhone X, XS, XS Max, 11, 11 Pro, 11 Pro Max, 12, 12 Mini, 12 Pro, 12 Pro Max, 13, 13 Mini, 13 Pro, 13 Pro Max, 14, 14 Plus, 14 Pro, 14 Pro Max, 15, 15 Plus, 15 Pro, 15 Pro Max, 16, 16 Plus, 16 Pro, 16 Pro Max, 17, 17 Pro, and 17 Pro Max motherboards. Each stencil in the set is machined for the specific hole pattern of its target iPhone model, so the solder mask lines up with the mid-frame pads instead of forcing you to eyeball alignment under a microscope. The precision hole pattern also keeps solder balls round and separated during reflow, which lowers the chance of bridging between adjacent contact points on tightly spaced boards like the 14 Pro Max or 17 Pro Max middle frame. You place the motherboard on the magnetic base, select the stencil that matches the specific iPhone model in front of you, seat it using the positioning plate, and apply solder paste evenly across the mesh before running the board through a hot air station or reflow platform. Because the base and stencils separate from the board cleanly after reflow, cleanup stays fast and repeatable across dozens of boards in a single shift. This platform earns its place on a repair bench doing board swaps, dead board recovery, middle-layer solder joint repair after moisture damage, and general logic board reballing where the original mid-frame solder has degraded or lifted. Repair shops handling iPhone trade-ins, refurbishment lines, and motherboard-level component repair rely on tools like this to standardize their reballing process instead of relying on freehand tinning, which produces inconsistent results and increases the risk of shorts. The magnetic locking mechanism also reduces hand fatigue during long repair sessions, since the technician does not need to hold the board and stencil in position manually while applying heat. Because the set spans nine iPhone generations, it fits naturally into any workshop's PCB repair station alongside hot air rework equipment, microscopes, and other mid-frame fixtures, and it pairs directly with ISP pinout tools and CPU/eMMC reballing platforms already on the bench for boards that need both middle-layer and chip-level attention. For technicians who service a wide mix of iPhone models rather than a single generation, this kind of multi-model platform reduces the number of separate fixtures cluttering the workspace while keeping reballing quality consistent from one board to the next.