Check the serial number on the back of your casing. Some updates, like Version 9.2, are specifically recommended only for units with the FA4P serial prefix.
Extract the root firmware files (often labeled as VerA or VerB depending on your screen hardware).
requires a manual local flash via a MicroSD card. The player does not support Over-The-Air (OTA) network updates. Phase 1: Pre-Upgrade Requirements faudio fa4 firmware upd
This version is frequently discussed in enthusiast communities. It is often reported to improve bass response and fix volume-related distortion.
For cards , use a computer to format the card to exFAT . For cards 32GB or smaller , format to FAT32 . Check the serial number on the back of your casing
: Format a low-capacity MicroSD card (ideally 16GB or 32GB) to the FAT32 file system format.
The F.audio FA4 Go to product viewer dialog for this item. requires a manual local flash via a MicroSD card
: Format your MicroSD card to FAT32 or exFAT format using a computer.