MT6371P Power Control IC

When a Redmi 6, Redmi 6A, or Meizu Pro 7 comes into your workshop completely dead with no charging response and no boot activity, the MT6371P is one of the first ICs you check on the power rail. This chip sits at the center of the board's power distribution, and MediaTek designed it to combine DC-DC buck conversion, LDO regulation, and battery management functions into a single BGA package. That integration is exactly why a single faulty MT6371P can take down multiple systems on the board at once — display, charging, and boot sequence can all stall from one bad IC.You'll typically land on this chip during diagnostics after ruling out the battery and charging port. If the phone shows zero response to charger insertion, doesn't pull current on your power supply, or drops dead after a flash attempt, the MT6371P deserves a close look. Technicians working these boards regularly describe the fault pattern the same way: dead after flash, no logo, or a board that draws no current at all when connected to a bench power supply. Since this IC manages the voltage rails that other components depend on, a short or open on the MT6371P disrupts the entire power sequencing chain rather than just one function.Replacing the IC follows standard BGA rework practice. Reball or use a matching pre-balled replacement, control your hot air station temperature carefully around the surrounding components, and confirm your alignment before reflow — Redmi 6 and Redmi 6A boards pack components tightly around this region, so shifting a neighboring part during removal is a common mistake that turns a simple IC change into a multi-hour repair. Clean the pads thoroughly before mounting the new chip, since flux residue under a power IC is a frequent cause of intermittent faults after the repair looks complete on the bench.This part fits directly into your ISP and eMMC workflow toolkit as well. If you've already ruled out software faults using your box or ISP pinout tool and the board still won't power on, that's your signal to move from software diagnostics to hardware-level IC replacement. Many technicians pair MT6371P replacement work with a continuity check using a multimeter first, confirming the short or open before committing to a full reflow — this saves you from removing a working IC unnecessarily.Stock condition matters more with power ICs than most other board components. A used or reclaimed MT6371P can carry hidden thermal stress from its original desoldering, and that stress often surfaces weeks later as an intermittent charging issue rather than an immediate failure. Sourcing new stock for this repair protects your callback rate, particularly on power-related fixes where customers expect the phone to hold up under daily charging cycles.For repair shops handling volume on these three models, keeping the MT6371P stocked alongside your reballing kit and PCB holder setup means you're not waiting on parts when a straightforward power fault walks through the door. It's a common enough failure point on Redmi 6 series and Meizu Pro 7 boards that most technicians servicing budget Xiaomi and Meizu devices will encounter it regularly.