S535 Power IC

When a Samsung Galaxy S7 Edge comes into your workshop completely dead — no charging light, no logo, no response to a battery or charging port swap — the power management IC is usually the first suspect after you rule out the battery and charging circuit. The S535 is the big power IC on the G935F/G935FD board, sitting alongside its smaller counterpart and handling the core voltage rails that every other component on the board depends on. If this chip develops a dry joint, cracks internally, or gets damaged from a short circuit or liquid exposure, the phone won't power on at all, and no amount of software marna or flashing will bring it back until the hardware fault is fixed.This is a board-level component, not a plug-and-play part, so the replacement work happens under a microscope or magnifier with a hot air rework station or infrared preheater. The typical workflow starts with diagnosing the fault properly — checking for a short on the power rail with a bench power supply or multimeter before assuming the IC itself is bad. Once you've confirmed the S535 is the actual failure point, the board gets masked with heat-resistant tape, flux is applied around the chip, and hot air is used to lift it off the pads without disturbing neighboring components. Pakistani technicians handling Galaxy S7 Edge boards know this step well: too much heat and you risk lifting pads or damaging nearby ICs, too little and the chip won't budge cleanly.
After removal, the board pads get cleaned with soldering wick and fresh flux, then the new S535 IC change karna happens — reballing the chip if you're using a bare die, or placing a pre-balled replacement directly using a jig or stencil matched to its 192-pin BGA footprint. Precise alignment matters here since the pad pitch is tight, and even a slight shift during reflow can cause a bridge or an open connection, both of which bring you right back to a dead phone. Once reflowed and cooled, a continuity check and a power-on test confirm whether the board is drawing current correctly again.This IC is commonly needed alongside other power-related faults on the G935F board, including hang on logo issues, boot loop problems after a failed software update, and phones that show charging issue symptoms without actually charging. Many workshops keep both the S515 and S535 in stock together since they're both used in the same power management cluster on Galaxy S7 and S7 Edge boards, and a tech won't always know which one has failed until the board is under the scope. For a Lahore, Karachi, or Islamabad repair shop handling steady Galaxy S7 Edge traffic, having this part on hand cuts turnaround time significantly compared to sourcing a full donor motherboard.
Reliability at this level of repair comes down to two things: correct diagnosis and clean soldering technique. A misdiagnosed IC replacement wastes both the part and the customer's time, so confirming the fault with proper testing before reaching for the hot air station saves rework later. This S535 IC is manufactured to match the original chip's pinout and footprint, giving you a direct swap without needing to modify the board or run jumper wires, so long as the surrounding circuit is otherwise healthy.