Faudio Fa4 Firmware Upd Today

Based on community feedback from Head-Fi, Reddit, and FAudio’s own release notes (compiled from searches for "faudio fa4 firmware upd review"), here is what real users report:

Negative changes? Some users on older firmware claim the update “removed warmth” or made the treble sharper. You can always downgrade if you saved the previous firmware file, though FAudio does not officially support downgrades.

The Faudio FA4 firmware update v2.1.0 transforms this IEM from a “basshead novelty” into a genuinely well-balanced hybrid. It’s not a night-and-day difference – the house sound remains warm, dark-ish, and musical – but the cleanup in the lower mids fixes the one major flaw. faudio fa4 firmware upd

Faudio deserves credit for supporting their product post-launch. Most IEMs are static. The FA4 is literally upgradable.

If you’ve had your FA4 sitting in a drawer because the bass was too much, dig it out and run the update. You might fall in love with it again. Based on community feedback from Head-Fi, Reddit, and

Version checked: FW v2.1.0 (Build date 2025-01-17)
Source chain: iPhone 15 Pro (USB-C) → FA4 stock cable → Direct (no DAC)
Test tracks used: Daft Punk – Doin’ it Right, Yosi Horikawa – Bubbles, Steely Dan – Gaucho, Billie Eilish – xanny

Unlike TWS earbuds (e.g., AirPods or Sony WF series), the FA4 does not have an internal System-on-Chip (SoC) capable of receiving OTA (Over-The-Air) updates. The "smart" component is the cable, not the earphone. Negative changes

A: Yes, but it must support data transfer. Many cheap charge-only cables will cause a "Device Descriptor Request Failed" error. Use a cable rated for USB 3.0 or a known brand (Anker, UGreen).

The FAudio FA4 is a high-fidelity IEM featuring a hybrid driver configuration.