SM5708 Charge IC

Charging faults on the Galaxy A6+ and J8 don't always come from a worn charging port or a swollen battery. A large share of these boards land on the bench with charging IC damage after a liquid exposure, a bad third-party charger, or a botched previous repair. The SM5708 sits directly in the charging power path, so once it's compromised, the phone either won't charge at all, shows charging on the screen with no actual current flow, or overheats near the charging connector without pulling any current.This is the exact charging control IC used on Samsung's A605 and J810 boards. You're not buying a generic universal chip and hoping it fits — this is the specific part number Samsung placed on these boards, so pin mapping and BGA footprint match without modification. That matters on a repair bench where reflow time is money; a mismatched footprint means a second reball, a lifted pad, or a board you can't recover.Diagnosis before replacement saves you the chip and saves the customer a repair bill for nothing. Check the charging port continuity first, confirm the battery is holding a proper voltage under load, and only then move to board-level testing around the SM5708. A dead phone that shows zero current draw on the power supply, paired with a hot spot near the IC location under thermal camera or finger test, points straight to this component. If the phone charges intermittently or only at certain angles of the cable, that's more often a port or flex cable issue — don't waste a chip on the wrong fault.Reballing this IC needs the right stencil size for its BGA pitch, leaded solder paste for lower reflow temperature, and a hot air station with stable airflow control rather than a cheap gun that overshoots. Preheat the board from underneath before hitting the IC directly with top-side hot air — thermal shock on these boards is a common cause of adjacent component damage during charging IC replacement. Clean flux residue thoroughly after reflow; leftover flux near a charging circuit is a frequent cause of a "fixed" phone coming back with the same fault two weeks later.Once reflowed, don't box the phone up immediately. Run it through a full charge cycle test, check current draw at the bench power supply, and confirm the phone registers a stable charging icon without the screen flickering on cable insertion. A rushed test is how technicians end up with repeat customers and burned reputation, especially in a market where word of mouth drives most repair shop business.Stock a few of these alongside your other A6+ and J8 board-level parts. Charging complaints are one of the most common walk-in issues on these two models across Pakistani repair shops, and having the exact IC on hand instead of ordering it mid-job keeps your turnaround time competitive.