338S00105 U3101 Big Main Audio Codec IC Chip for iPhone 7 & 7 Plus

The 338S00105 Main Audio Codec IC Chip (designated as U3101 on iPhone 7 series boards and U3500 on iPhone 6s series boards) is a premium, factory-standard hardware replacement component engineered for component-level smartphone motherboard restoration. Operating as the central sound processor on the circuit board, this 144-pin integrated circuit governs all essential input and output acoustic signals. It acts as the primary driver managing the handset’s microphone frequencies, ear speaker streams, loudspeaker routing, and voice signal decoding pathways.