9. How does K9 upgrade firmware?
K9 firmware is divided into two parts: Bluetooth firmware and XMOS firmware.
Different parts may need to be upgraded for different functions. Please refer to the latest firmware instructions for details.
K9 upgrade XMOS firmware?
the computer needs to be upgraded, please confirm that the latest DAC driver is installed on the computer before upgrading, and download the latest firmware installation package: click
upgrade tutorial is as follows:
1. After K9 is turned on, switch to the USB DAC state, and then connect the USB port of K9 with the computer through the USB data cable
2. Open the DFU upgrade tool and run FiiODfu.exe
3. Click "Start" to start the automatic upgrade
Attention:
After the upgrade is completed, please do not perform any operation, and observe the input status indicator of K9.
If the five lights are on together, it means that the internal software is burning, please do not do any operation.
When the indicator light changes back to only one USB light on, it means that the burning is complete. Please turn off the machine and then use it normally.
k9 how to upgrade bluetooth firmware?
K9 Bluetooth firmware upgrade is completed on the mobile phone using the APP FiiO Control. It supports online and local upgrades. The upgrade steps are as follows:
1. Confirm that the latest version of FiiO Control(3.9 or above) is installed on the mobile phone. If not, it can be downloaded and installed through the mobile phone application market;
2. Android and Apple mobile phones support upgrade. K9 switches to Bluetooth mode, and Bluetooth and K9 are paired and connected
3. Open the FiiO Control and upgrade at the Settings-Firmware Upgrade in the upper right corner. You can choose online upgrade or local upgrade;
online upgradethere is no need to download firmware, click "online upgrade" directly. if there is a new version of software, it will jump to the upgrade prompt interface. if there is no new firmware, the pop-up window will prompt "currently is the latest version"
Local Upgradeneed to download the latest firmware from Feiao official website and copy it to the mobile phone or download it directly from the mobile phone, and then click "Local Upgrade" in APP to find the downloaded firmware for upgrading;
local upgrade firmware download links:Click
[Note]]
can't get into fiio Control?
1. Restart the Bluetooth receiving device
2. Mobile Phone Settings-Application, Find FiiO Contrl, Open FiiO Control Location Permission, All Set to Allow, Clear FiiO Contorl Cache Data
3. Reload FiiO Control
4. If the mobile phone version is Android 13, please contact customer service to provide a separate APK
bluetooth firmware upgrade process stuck in the k9 interface?
K9 shutdown restart, reconnect, try upgrade again
