Before updating, verify your device's serial number on the back of the casing. Updates such as version 9.2 are specifically for models with the FA4P serial; installing it on non-P models may cause errors.
Install the drivers on a Windows PC and restart the computer. Launch the flashing tool application as an Administrator. faudio fa4 firmware install
Most high-end DACs require a specific button combination to enter Device Firmware Upgrade (DFU) mode, which allows the flash memory to be rewritten. Turn off the FAudio FA4 completely. Disconnect the USB cable from the device. Before updating, verify your device's serial number on
this file directly onto the root folder structure of your newly formatted MicroSD card. Do not hide it inside subdirectories. Launch the flashing tool application as an Administrator
If your device is boot-looping or cannot access the settings menu, you must use a computer-based flashing tool.