bt_hci_driver: Endpoint binding failed with -11

RE: bt_hci_driver: Endpoint binding failed with -11

gocchan — Fri, 01 May 2026 06:52:09 GMT

I tried both methods, but the problem has not been resolved.

Vidar Berg — Tue, 28 Apr 2026 10:04:32 GMT

I can confirm that the regular Hello world does not include anything for the network core. When working with Bluetooth, you need to include the IPC Radio application on the network core. This can be done either by adding a sysbuild.conf file in your project with SB_CONFIG_NETCORE_IPC_RADIO and SB_CONFIG_NETCORE_IPC_RADIO_BT_HCI_IPC set to "=y", or by copying the Kconfig.sysbuild file from one of our Bluetooth samples like this one https://github.com/nrfconnect/sdk-nrf/blob/main/samples/bluetooth/peripheral_uart/Kconfig.sysbuild

Turbo J — Tue, 28 Apr 2026 08:02:09 GMT

The hello sample builds with an empty net core by default IIRC.

Using one of the nrf BT samples should yield a working build with a proper BTLE enabled net core image.

Net core image is specified in the sysbuild.conf file.