How to update the firmware for K11: Click here

How to check the firmware version: 

Hi, you could go to the setting menu(Turn on the device. On the homepage, hold the volume knob for about 2s to enter the Settings menu. Rotate the knob to switch between different settings. When the current setting needs to be changed, short press the volume knob, and there will be flashing characters showing up on the menu.) and find the FWxxxx option, then you could find the firmware version. 

Updated at 2025-11-05

K11 V129 firmware changes are as follows:

1. Fixed the issue where audio dropouts may occur in optical decoding for televisions.

Note: Go to "System Settings – AES3" and set AES3 to "1".

2. Fixed the issue of accidental triggering when double-pressing the knob.

3. Fixed the issue where there may be no output when switching to coaxial mode.

4. Miscellaneous bug fixes.

K11 V129 firmware download link: Click here

Note: After updating V129,  all the device settings will be erased.

K11 V122 firmware content:

1. Solve the problem of jamming when decoding 32KHz sampling in OPT mode

    and unplugging and plugging in the OPT cable;

2. Solve the problem of not being able to power on after shutting down in OPT mode.

K11 V122 firmware download link: Click here

K11 V114 firmware content:

1. Optimize the problem that USB DAC playback has a probability of automatically

    recovering after 1 ~ 2 seconds of discontinuous sound;

2. Optimize the problem that the sound output may be delayed by 2 seconds during

    the first playback;

3. Optimizing the playback of certain tracks will cause noise problems.

K11 V114 firmware download link: Click here