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  • Case ID: 327498
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nRF5340 Audio-DK [HEADSET][UNICAST_SERVER] - Failed to establish the LE Audio connection to nRF5340 Audio DK from Samsung Galaxy S24+.

Jeevan Kumar

Hi Team,

I have 1 nRF5340 Audio DK. With the steps mentioned in below links, I configured Json file to Headset and I'm able to achieve it.

Setup Details :
Headset - nRF5340 Audio DK
Gateway - Samsung Galaxy s24+.
SDK Version : nRF Connect SDK v2.6.1
Application: nrf5340_audio.

Procedure:
Step 1: Build SDK with nrf5340_audio with below mentioned configurations.
Step 2: Flashed board with application and then performed reset.
Step 3: Connetion is initiated from Bluetooth settings page to DK.

Observations:
When trying to enable LE Audio, it is failing. No LE Audio connection is established. However GATT level connection has established.

HL [00:00:29.543,273] <inf> bt_content_ctrl_media: Discovery of MCS finished

No communication is observed after above service discovery procedure.

In prj.conf, added following configurations. (These configuration are referred from previously answered questions)
CONFIG_AUDIO_DEV=1
CONFIG_TRANSPORT_CIS=y
CONFIG_I2C=y
CONFIG_BT_VCP_VOL_REND=y
CONFIG_BT_CSIP_SET_MEMBER=y
CONFIG_BT_MCC=y
CONFIG_BT_LOG_SNIFFER_INFO=y
CONFIG_STREAM_BIDIRECTIONAL=y
CONFIG_BT_PERIPHERAL=y
CONFIG_BT_BAP_UNICAST_SERVER=y
CONFIG_BT_CAP_ACCEPTOR=y
CONFIG_BT_CAP_ACCEPTOR_LOG_LEVEL_DBG=y
CONFIG_CODEC_CAP_COUNT_MAX=10
CONFIG_BT_PAC_SNK=y

How I can enable LE Audio? Is there any specific CONFIG to enable ??
Please help here.

Thanks a lot !!!

  • 0

    Hi,

    Could you provide more information about the changes that you made to the default nrf5340_audio application on the headset side?

    Have you tried using any other phone?

    Best regards,
    Dejan

  • 0 in reply to dejans

    Hi Dejan,

    dejans said:
    Could you provide more information about the changes that you made to the default nrf5340_audio application on the headset side?

    I have added the above mentioned CONFIGs in the prj.conf file.

    dejans said:
    Have you tried using any other phone?

    I have not tried due to unavailability of mobiles with LE audio support.

    Thanks a lot Slight smile !!!

    Best Regards,
    Jeevan Kumar K.

  • 0 in reply to Jeevan Kumar

    Hi,

    Have you updated your phone to the newest Android version?

    After connecting to the CIS headset, you could try to check the device settings for CIS gateway in the Bluetooth page to see if there is a switch for enabling LE Audio feature.
    Alternatively, you could try to enable developer options and support for LE Audio on your phone. It might be that support for LE Audio is not enabled by default.

    Best regards,
    Dejan


  • 0 in reply to dejans

    Hi Dejan,

    dejans said:
    Have you updated your phone to the newest Android version?

    Yes, phone is updated to newest Android version(Android 14).

    dejans said:
    After connecting to the CIS headset, you could try to check the device settings for CIS gateway in the Bluetooth page to see if there is a switch for enabling LE Audio feature.

    Yeah, I can see a switch to enable LE Audio feature. When I am trying to enable the same however switching to LE Audio is not happening. 
    Attaching screen recorded video for reference.

    Best Regards,
    Jeevan Kumar K.


  • 0 in reply to Jeevan Kumar

    Hi,

    Thank you for sharing the video.

    Can you try to enable LE Audio via Developer options?

    Best regards,
    Dejan

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