UTP OTA (hci_le_enable_ota_utp_mode / hci_le_utp_send) support on nRF54L15?

[Sahil01]

Hi,

I am trying to confirm whether nRF54L15 as a chip officially supports the UTP OTA feature.

From the SoftDevice Controller documentation I can see that the following HCI commands are listed as supported:

• hci_le_enable_ota_utp_mode
• hci_le_utp_send

[Supported commands]

However, in the nRF Connect SDK “Bluetooth features support” table for the nRF54L Series, I only see entries such as Frame Space Update, Shorter Connection Intervals, LE Power Control, etc., and there is no explicit per‑SoC entry for UTP OTA. [Bluetooth features support]

My questions are:

1. Is UTP OTA (via hci_le_enable_ota_utp_mode / hci_le_utp_send) officially supported on nRF54L15 in nRF Connect SDK?
2. If yes, is there any documentation, example, or recommended configuration that explicitly ties this feature to nRF54L15?
3. Are there any SoC‑specific limitations or caveats for using UTP OTA on nRF54L15?

I’m looking for a concrete, chip‑level confirmation similar to what the Bluetooth features table provides for other features.

Thanks in advance!

[Einar Thorsrud]

Hi,

UTP OTA is currently not supported (I see that the comment in sdc_hci_cmd_info_params.h gives the impression that all listed commands are supported, but that is not the case).

May I ask why you want support for it, and if you can elaborate on that?