Power Amplifier IC for Samsung Galaxy A3 2017

The Power Amplifier IC in your Samsung boosts the outgoing RF signal generated by the baseband processor to the power level required for transmission to mobile network towers. Without a functioning Power Amplifier IC, your Samsung can receive signals from towers but cannot transmit at sufficient power — causing calls to drop, data to be unreliable, and the network to fail to register your device for outgoing communication even in areas with good coverage.

Key indicators include your Samsung showing good signal bars but dropping calls immediately after connection, mobile data showing as connected but not functioning for outgoing requests, other people being unable to hear you on calls while you can hear them, and the network registering your SIM for incoming calls but failing for outgoing. These are all transmission-side failures consistent with Power Amplifier IC fault.

Yes. A failing Power Amplifier IC can draw excessive current in attempting to compensate for poor output — generating significant heat in the RF section of the Samsung motherboard. Overheating near the top or side of the motherboard during calls or data use is a symptom worth investigating at the PA IC level.

No. The Power Amplifier IC is a high-frequency RF chip soldered onto the Samsung motherboard — requiring hot air rework equipment, correct stencil, flux, and advanced board-level RF repair experience. Incorrect replacement can damage surrounding RF components permanently.

Yes — a 7-day replacement warranty against manufacturing defects is included. An unboxing video is mandatory for all warranty claims. Once the chip has been soldered it is considered used and cannot be returned. For more information, check out SAHII's Return Policy.