PMI632 802 Power IC

A dead phone that won't power on is one of the most common boards a GSM technician pulls apart, and in a large share of Snapdragon 675-based devices, the fault traces back to the PMI632-802-00 power management IC. This chip sits at the center of the board's power tree, taking raw battery voltage and converting it into the multiple regulated rails that feed the processor, memory, display driver, and RF sections. When it fails, the device usually shows zero current draw on the power supply, stays completely dead, or gets stuck in a boot loop that no software flash can fix.Qualcomm designed the PMI632 family specifically to pair with SM6150-series chipsets like the Snapdragon 675, and the 802 revision is the variant found on Vivo V15 Pro boards, along with Oppo A5 and Honor Play 8C / Enjoy 9 units built on related mid-range Qualcomm platforms. You'll recognize the fault pattern quickly on your bench: connect the board to your DC power supply, and instead of a normal current climb, you either see no draw at all or a dead short across the battery rail. That short circuit signature is the classic giveaway that points straight at this IC rather than the CPU or a simple dry joint.Before you commit to an IC change, isolate the fault properly. Use your thermal camera or a low-voltage current injection method to confirm the short is actually sitting under the PMI632 footprint and not somewhere else on the same rail. Technicians who skip this step end up reballing an IC that was never the actual fault, wasting stencil time and risking unnecessary pad damage. Once you've confirmed the short, remove the old IC with your hot air station at a controlled temperature profile, clean the pads thoroughly with flux and braid, and prep the board for reballing.This is where board-level rework skill matters. The PMI632-802-00 uses a fine-pitch WLCSP-style footprint, so pad alignment during reballing has to be precise. A stencil matched to this exact package, quality solder balls, and a stable hot air or IR preheat setup will get you a clean reflow without bridging. After mounting the new IC, always retest current draw before reassembling the phone — confirm the board pulls a normal boot current and the device powers into recovery or normal boot mode. Skipping this check is how technicians end up reopening boards they thought were already fixed.Common repair scenarios where this IC comes into play include dead-after-drop boards, dead-after-liquid-damage boards where corrosion has degraded the PMIC pads, and dead-after-flash cases where a bad firmware write coincided with an already-weakening power IC. It's also relevant during board diagnostics for phones that show charging but never power on, since the PMI632 controls sequencing between the charging path and the main power rails — a charging issue on the surface can sometimes be a power sequencing fault underneath.For Pakistani repair shops handling high volumes of Vivo and Oppo boards, keeping genuine PMI632-802-00 stock on the bench means you're not waiting on a supplier every time a dead board comes through the door. Every unit sold by KB GSM Store is tested stock, sourced for board-level technicians who need a reliable component the first time, without wasting reballing attempts on questionable parts. Whether you're running a solo repair bench or managing intake for a busy service center, this IC belongs in your regular power-IC stock alongside your reballing kit and hot air station.Handle the component with standard ESD precautions during storage and installation, and always verify board fault before ordering — while the PMI632-802-00 is a frequent culprit in dead Snapdragon 675 boards, a proper current-draw diagnostic saves you from an unnecessary IC swap.