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Reply:3 Read:3352   2023-12-20 14:47:23


BTR15 Bluetooth V2.2 firmware content:

1. Added the function of modifying the EQ custom name in Fiio Control App;

2. Added screen off time option, which can be set in the menu;

3. Added PC/BT/PHONE, the three modes have independent volumes;

4. Fixed the issue where switching high and low gain multiple times would cause the gain to

    be inconsistent;

5. Fixed the problem that the charging icon would flash when charging is switched from

    PHONE mode to PC mode;

6. Fixed the problem of full charging and inaccurate battery display;

7. Optimize the battery life issue when using UAC in PHONE mode.

8. Optimize other performance.


BTR15 Bluetooth V2.2 firmware download link and update instruction: Click here




BTR15 XMOS V121 firmware content:

1. Update PID.


BTR15 XMOS V121 firmware download link and update instructionClick here


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