Qianli Bumblebee Stencil (QS187) for Samsung Exynos CPU Reballing When a Samsung board arrives as a dead phone and your diagnosis points at cracked CPU joints, the stencil you pick decides whether the reball holds. The Qianli Bumblebee Stencil (QS187) is a BGA reballing stencil built for Samsung Exynos CPUs on Android devices. Qianli’s Bumblebee range uses square holes with rounded corners, which helps solder paste and balls land where the pads need them. You place the stencil, spread your paste, reflow, and lift off a chip that is ready to go back on the board. If you reball Exynos CPUs regularly for boot loop issue and hang on logo jobs, this stencil earns its place on your repair bench.Where QS187 Fits in Your Exynos CPU Repair Workflow Your Exynos CPU repair starts with diagnosis, not the stencil. You check current draw on the power supply, rule out PMIC and charging issue causes, and confirm the CPU joints are the real fault. Once the board points at the CPU, you lift it with hot air, clean the pads, and clean the underside of the chip. This is where the Qianli Bumblebee Stencil (QS187) comes in. You hold the chip steady, spread paste across the stencil openings, and reflow until the balls form, then you reseat the CPU and test the phone for the original fault. Some dead after flash cases end at the CPU too, once your software checks come back clean. A matching stencil keeps every ball in its own position, and that makes your hardware fault repair easier to trust.Square Holes With Rounded Corners at Your Bench Qianli describes its Bumblebee range as square-hole, round-angle BGA stencils that stay sturdy and precise over time. At your bench, that design gives you clear openings to work with, so you can inspect every ball position under the microscope after the reflow. You catch bridged balls and missing balls before the CPU goes back on the board, not after the phone fails again. The QS number on each stencil tells you which chip family it matches, which keeps your stencil drawer organised across Samsung, Qualcomm, and MediaTek jobs. QS187 follows the same system for Samsung Exynos CPUs. Clean every opening of old paste before each use, and your results stay consistent from one reball to the next.Choosing QS187 and the Tools Around It Buy QS187 when your shop handles Samsung phones with Exynos CPUs and you want a stencil dedicated to that job. Qualcomm and MediaTek boards need their own stencils, so browse the BGA stencil category at KB GSM Store for those chip families. Keep a hot air station, a PCB holder, flux, solder paste, and a microscope within reach, because a good stencil still needs a stable setup around it. If you want a firmer hold on the chip, look at a Qianli 3D black stencil where one exists for your CPU. Many shop owners search “price in Pakistan” before ordering stencils, and KB GSM Store lists QS187 for technicians across the country. Match your Exynos CPU against the stencil before you order, and your IC change karna jobs stay clean and repeatable.
