HI6422 GWCV210

The HI6422 GWCV210 is one of the most commonly replaced power ICs on Huawei and Honor motherboards. If you run a repair bench that handles Huawei hardware regularly, you already know this chip by sight — it sits at the center of the power delivery network and controls how voltage rails get distributed to the CPU, memory, charging circuit, and display driver. When this IC goes bad, the symptoms are almost always dead phone, no display, no charging response, or a board that draws current but never boots to logo.This variant covers a wide device range: Mate 8, Mate 9, Mate 10, Mate 10 Pro, Mate 20, Mate 20 Pro, Mate S, P8, P9, P10, Honor 6, Honor 6 Plus, Honor 7, Honor 8, Honor V8, Honor Magic 2, and Nova 3. Since Huawei reused the HI6422 GWCV210 across several board revisions during this generation, keeping a few of these in stock covers a large share of the Huawei dead-phone jobs that come through a typical Lahore or Karachi repair shop.On the bench, this IC is usually your second or third suspect after you rule out the battery connector and charging port. Start with a current draw test on your DC power supply — if the board pulls a short or shows no current at all, check the rails this PMIC controls before jumping to CPU-level suspicion. A common workflow: isolate the power IC pins with a multimeter in diode mode, compare readings against a known-good board if you have one, then proceed to IC change if the readings point to an internal short inside the chip itself. Reballing this IC needs a proper stencil match and controlled hot air profile — too much heat risks lifting pads on a board that's already stressed. Use flux generously, keep your hot air station at a steady, moderate temperature, and reflow slowly rather than blasting heat directly at the chip. A microscope helps a lot here since the ball pitch on this package is tight enough that a bridge or missing ball is hard to catch with the naked eye alone. This chip solves board chalu na hona (board not powering on) and charging issue cases that survive a full software marna attempt with no result — meaning the fault is hardware, not firmware. Once you confirm the IC is the culprit and not a jumper or a cracked trace nearby, swapping this part restores normal power sequencing on most affected boards. Keep this stocked alongside your reballing stencils, flux, and hot air tips for Huawei-specific jobs. Pair it with an ISP or eMMC programmer if the board also needs a software repair pass after the hardware fix, since power faults on these boards sometimes mask a corrupted firmware issue underneath.