Key Technical Overview
- Primary Functions: Handles localized wireless signals by acting as the main controller for Wi-Fi connections and Bluetooth pairing.
- Port Marking: Typically stamped with WCN3660B or WCN3660B 0VV on the outer casing.
- Package Form: Sold as a BGA (Ball Grid Array) microchip designed for precision logic board soldering.
Main Device Compatibility
This component is widely sourced as a replacement part for several smartphone models when they experience network dropouts or grayed-out wireless toggles:
- Samsung: Extensively used in the Samsung Galaxy A5 (SM-A500) variant.
- Xiaomi / Redmi: Found inside the Xiaomi Mi 4, Redmi 2, Redmi 2S, and Redmi 5 Plus.
- Vivo & Realme: Compatible with devices like the Vivo Y66, Y66i, Y79, and the Realme 2.






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