Firmware Upd | Faudio Fa4

| Method | Steps | |--------|-------| | | Download the brand’s app (e.g., “Faudio” if exists, or OEM app like “QCY”, “SoundPEATS”, “Haylou”). Pair earbuds → go to Settings → Firmware Update. | | Manual file transfer (rare for TWS) | Download .bin or .dfu file → connect earbuds to PC via USB (some have a hidden USB mode) → copy file to internal storage. | | Button-press update (older method) | Place both earbuds in case → press and hold button for 10+ seconds → update triggered by app. |

Bookmark the official FAudio download page. Do not rely on random Google Drive links. Firmware security matters – counterfeit FA4 units exist, and loading official firmware on a fake unit will permanently destroy it. faudio fa4 firmware upd