Power IC failures rank among the toughest boards a technician sees on the bench. When a Redmi Note 8, Note 8 Pro, Oppo Reno2, or Vivo Nex 3 comes in completely dead, drawing zero current on the DC power supply, or charging but never powering on, the MT6359VKP power IC is one of the first suspects worth checking. This PMIC sits close to the battery connector and CPU power rails, so any physical shock, liquid exposure, or short circuit tends to hit it directly.On the workshop floor, a "dead phone" with no current draw at all usually points to a short somewhere on the power rail, and after isolating the fault with a thermal camera or short killer, the MT6359VKP often turns out to be the component absorbing the damage. You'll also see it named when a board charges normally but refuses to boot past the logo, or when the phone works fine on a bench power supply but dies the moment the original battery goes back in — both are classic power sequencing symptoms tied to this chip rather than the battery itself.Replacing it isn't a job for a soldering iron alone. This is a BGA component, so it needs a hot air rework station set to the correct profile, proper flux, and a steady hand to avoid lifting pads on a board this dense. Reballing is often necessary if the original balls get damaged during removal, and a microscope helps confirm alignment before reflow — a shifted IC on a board this size will short the very rails you're trying to fix. Preheating the board evenly before hot air work reduces the risk of board warping, especially on the Reno2 and Nex 3 boards, which pack components tightly around this area.Before ordering, confirm the fault is genuinely IC-level and not a cracked solder joint or a damaged connector pad. A lot of "power IC dead" boards on the bench turn out to be a hairline crack from a drop, and reflowing the existing chip with hot air resolves it without needing a replacement at all. Where the IC itself has failed — usually visible as physical damage, a confirmed short across a specific rail, or component-level testing showing an open circuit — swapping in a genuine MT6359VKP restores normal charging behavior, stable voltage output, and correct power-on sequencing.This listing carries new, tested stock rather than pulled or reclaimed components, which matters on a PMIC — a used power IC with hidden thermal stress is a common cause of repeat failures after reballing. Every unit ships ready for direct reflow onto the compatible boards listed above.Keep in mind this IC is device-specific to the boards it was designed for. Don't attempt a cross-board swap onto an unlisted model even if the physical footprint looks similar — PMIC firmware and rail mapping differ across MediaTek and Qualcomm platforms, and a mismatched IC can damage the board further. If you're unsure whether your board's fault is power IC-related, isolating the short first with a DC power supply and thermal camera before ordering will save you a wasted reflow cycle.