AMAOE SAM18 Stencil SAMSUNG

A Galaxy A54 can land on your repair bench as a dead phone after a fall, or a Galaxy A14 can sit stuck on the logo with a fault that no software flash clears. In both cases the CPU solder joints often become the real suspect, and the AMAOE SAM18 Stencil SAMSUNG gives you the exact ball pattern you need to rebuild them. Amaoe designed this 0.12mm steel reballing stencil around the Samsung Exynos 1330 (E8535P), Exynos 1380 (E8835P), and MediaTek MT6789V CPU universal series. One plate therefore covers the processor families inside a large share of the mid-range Samsung phones that Pakistani shops handle every day. Mid-range Samsung boards run warm under daily load, and repeated heating and cooling cracks the tiny solder balls under the SoC over time. The phone then shows random restarts, a boot loop issue, no display with normal current draw, or a sudden network issue after a drop. A software reflash cannot repair a broken BGA joint. Once your diagnostics point to the CPU, you need to lift the chip, clean both the chip and the board pads, and place a fresh, even set of solder balls. That final step decides whether the job comes back to your counter, and a matched stencil removes the guesswork. The SAM18 plate carries a dedicated hole layout for each supported chip, so you align the processor once and the openings sit directly over its pads. Its 0.12mm thickness falls in the standard range technicians use for phone CPU work. The plate is thick enough to hold the same volume of paste in every opening and thin enough to release cleanly after heating. You get round, uniform balls across the full grid instead of the bridged or missing balls that a worn or generic universal mesh tends to leave. Uniform ball height matters most on large SoC packages, because one short ball leaves an open joint and sends you back to a dead board after all that heat work. Start with a properly prepared chip. Remove the old solder with low-melt alloy and solder wick, clean the surface with isopropyl alcohol, and apply a thin, even film of flux. Fix the chip and stencil in a reballing platform or magnetic holder so nothing shifts. Spread solder paste across the openings with a flat scraper and wipe off the excess. Heat the stencil evenly with your hot air station at a moderate airflow so the paste stays in the holes, then let the plate cool completely before you separate it from the chip. Check every ball under your microscope before you place the CPU back on the board. Good stencil habits keep the plate flat and accurate for many jobs. Clean it with flux remover and a soft brush after every use so dried paste never blocks the small openings, and store it flat in its packet away from heavy tools. Never bend the plate while you lift it, since a warped stencil lets paste leak between pads and creates bridges on the next job. In the KB GSM Store range, the AMAOE SAM18 Stencil SAMSUNG belongs to the Reballing Kits category. It pairs naturally with a quality hot air station, solder paste, BGA flux, a PCB holder for the board-side work, and a stereo microscope for inspection. If you also service older Samsung boards, the companion SAM16 plate covers the Exynos 1280 series and SAM17 handles Exynos 2200 and Snapdragon 8 Gen 1 flagships. A dedicated BGA reballing station with a preheater is the logical upgrade for shops that plan to scale up CPU work, since it keeps board temperature stable during long rework sessions. Whether you run a busy shop in Lahore or a service center in Karachi, this stencil turns a risky CPU job into a repeatable process at an affordable price in Pakistan.