10. How to upgrade the Bluetooth firmware of K9?

The K9 upgrade is completed on our APP FiiO Control (or FiiO Music), and it supports online upgrade and Local upgrade.

 

Online upgrade:
1. Connect K9 to the phone via Bluetooth
2. Start the APP and go to the K9 Status page- -> Settings-Firmware upgrade

3. On the firmware upgrade page, tap Online upgrade
4. The system will automatically detect the new firmware version (beforehand make sure there is network working).Then a prompt dialogue will pop up. Tap CONFIRM to start the upgrade.
5. When the upgrade is going, please do not make any operation and wait with patience.
6. When the upgrade completes, a prompt of Upgrade completed successfully will pop up.

 

Local upgrade:

 

K9 Bluetooth Firmware downlaod link: Click here


1. Connect K9 ESS to the phone via Bluetooth

2. Start the APP and go to the K9 ESS Status page- -> Settings-Firmware upgrade

3. On the firmware upgrade page, tap Local upgrade

4. On the file list, tap the search icon and select the firmware file. Then a prompt dialogue will pop up. Tap CONFIRM to start the upgrade.
5. When the upgrade is going, please do not make any operation and wait with patience.
6. When the upgrade completes, a prompt of Upgrade completed successfully will pop up.

 

Note:
1. Please confirm that FiiO Control is installed on the phone, if not, you can download and install: Click here

2. Please update the firmware in Bluetooth mode and do not leave the Bluetooth mode until finishing update.

3. If the firmware update fails, please restart the K9 and update again. 

4. Both Android and Apple devices support upgrades

 

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