When a Samsung Galaxy A5 (2016) or A7 (2016) comes in with a dead charging port, the charging IC is usually where you start your diagnosis, not the charging port flex itself. The SM5705 sits directly on the power management line between the USB connector and the PMIC, controlling how the board negotiates charging current, detects the charger type, and regulates voltage going into the battery circuit. If a customer says the phone charges only at certain angles, drops charging suddenly, or shows a charging icon with no actual current going in, this IC is a very common point of failure, especially on boards that have taken liquid damage or been used with cheap aftermarket chargers.Technicians working on Samsung C5, C7, C9, and J5 boards will recognize this chip under different names, SM5705, SM5705Q, and SM5705R, depending on the exact board revision. All three variants share the same footprint and function on their respective boards, so once you confirm the board number, fitting the correct variant back is straightforward. This is not a universal component you can swap blindly across models, always match the board number first, then confirm which SM5705 variant the schematic calls for.On the bench, the usual workflow looks like this: isolate the fault to the charging line using a multimeter or power supply with current draw analysis, rule out the charging port flex and battery connector, then check for continuity and shorts around the SM5705 footprint. If the IC is shorted, dry-cracked from board flexing, or damaged from a liquid ingress, reballing or full IC change karna is the fix. Jumper lagana on individual pins is sometimes possible for minor trace damage, but a full IC swap is more reliable when the fault is confirmed at the chip itself rather than the surrounding traces.This SM5705 is supplied in original pulled condition, tested for continuity before packing, and ready for BGA reballing on your existing hot air station and reballing platform. Since this is a fine-pitch BGA package, a stable hot air rework station with accurate temperature control and a stereo microscope are strongly recommended for placement. Reflow at the manufacturer-recommended profile for the package type, and always check for tombstoning or shifted balls under magnification before powering on the board.For repair shop owners in Lahore, Karachi, and Islamabad running high volumes of Samsung board repairs, keeping SM5705 stock on hand cuts turnaround time significantly. Charging complaints are one of the most frequent walk-in issues on these Galaxy A and C series models, and having the correct IC variant ready means you're not waiting on a supplier mid-repair. This part fits directly into your existing eMMC, UFS, and PMIC repair workflow without requiring any additional tooling beyond what a standard micro-soldering bench already has.Buy this SM5705 charging IC from KB GSM Store for verified compatibility, tested stock, and fast delivery across Pakistan.
