DFU buttonless with Bond not working.

RE: DFU buttonless with Bond not working.

Lei — Wed, 03 Sep 2025 14:29:27 GMT

Hi it really depends on the details. As Vidar suggested, it may be better to create a new ticket or a private case. Vidar helped me to solve the problem long time ago.

RE: DFU buttonless with Bond not working.

Vidar Berg — Wed, 03 Sep 2025 10:13:02 GMT

Qinss_jon , this case is pretty old. Please create a new thread with information about your setup and a description of the problem you're experiencing.

RE: DFU buttonless with Bond not working.

Qinss_jon — Wed, 03 Sep 2025 10:01:26 GMT

What is the cause of the problem？The problems I am currently facing are the same as yours

RE: DFU buttonless with Bond not working.

Vidar Berg — Tue, 10 Nov 2020 16:44:19 GMT

Hi Lei,

Yes, please do. It's probably easier if I can debug it here. Just create a new private ticket. I'll assign it to myself tomorrow.

RE: DFU buttonless with Bond not working.

Lei — Tue, 10 Nov 2020 16:36:51 GMT

Hi Vidar,

Can I create a private case ticket? So I can upload everything for your reference.

Thanks a lot!

-Lei

RE: DFU buttonless with Bond not working.

Lei — Tue, 10 Nov 2020 15:41:17 GMT

Hi Vidar,

The ble_dfu_buttonless_async_svci_init is in service Initialization. I tried to move it right after log_init() in main() but got the same error.

The current init sequence in Main() is okay for DFU without bond. It's like bond changes something.

I just tried to move the peer_manager_init before service_init. It seems the program passed the service_init but stuck at advertising_init(), more specifically at

err_code = ble_advdata_encode(&srdata, m_adv_data.scan_rsp_data.p_data, &m_adv_data.scan_rsp_data.len);
APP_ERROR_CHECK(err_code);

with "ERROR 7, INVALID_PARAM".

Can I send you my source code?

Here is my advertising_init() code

static void advertising_init(void)
{
    ret_code_t           err_code;
    ble_advdata_t        advdata;
    ble_advdata_t        srdata;
    ble_gap_adv_params_t adv_params;
//       ble_advertising_init_t init;

    ble_uuid_t adv_uuids[] = {{LBS_UUID_SERVICE, m_lbs.uuid_type}};

    // Build and set advertising data.
    memset(&advdata, 0, sizeof(advdata));

    advdata.name_type          = BLE_ADVDATA_FULL_NAME;
    advdata.include_appearance = true;
    advdata.flags              = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;

    memset(&srdata, 0, sizeof(srdata));
    srdata.uuids_complete.uuid_cnt = sizeof(adv_uuids) / sizeof(adv_uuids[0]);
    srdata.uuids_complete.p_uuids = adv_uuids;

    err_code = ble_advdata_encode(&advdata, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len);
    APP_ERROR_CHECK(err_code);

    err_code = ble_advdata_encode(&srdata, m_adv_data.scan_rsp_data.p_data, &m_adv_data.scan_rsp_data.len);
    APP_ERROR_CHECK(err_code);

    // Start advertising.
    memset(&adv_params, 0, sizeof(adv_params));
    adv_params.p_peer_addr   = NULL;
    adv_params.filter_policy = BLE_GAP_ADV_FP_ANY;
    adv_params.interval      = APP_ADV_INTERVAL;

    adv_params.properties.type = BLE_GAP_ADV_TYPE_CONNECTABLE_SCANNABLE_UNDIRECTED;
    adv_params.duration        = APP_ADV_DURATION;
    adv_params.primary_phy     = BLE_GAP_PHY_1MBPS;

    err_code = sd_ble_gap_adv_set_configure(&m_adv_handle, &m_adv_data, &adv_params);
    APP_ERROR_CHECK(err_code);
}

RE: DFU buttonless with Bond not working.

Vidar Berg — Tue, 10 Nov 2020 14:21:44 GMT

Hi Lei,

I didn't notice that you had ble_dfu_buttonless_async_svci_init() in your service initialization. I took a closer look at the code now, and I think the error may be coming from ble_dfu_buttonless_init::ble_dfu_buttonless_backend_init(). It will return this error if the Peer manager is not initialized. Could this be it?

Best regards,

Vidar

RE: DFU buttonless with Bond not working.

Lei — Tue, 10 Nov 2020 14:01:26 GMT

Hi Vidar,

Yes, all you mentioned are set. That's why I feel weird.

I set the ble_dfu_buttonless_async_svci_init right after log_init(). From my original post, the debug info showed ble_dfu_buttonless_async_svci_init() called and success.

As I mentioned, everything is fine for DFU without bond. I also tried other application withDFU and Bond. It worked fine too. But just for this application after change the bond setting, the program stuck at

err_code = ble_dfu_buttonless_init(&dfus_init);
APP_ERROR_CHECK(err_code);

I suspect it may be some conflict between different services. Can you please take a look at my services_init() and main() in original post?

Or I can send you my source file with everything there.

Thanks a lot!

-Lei

RE: DFU buttonless with Bond not working.

Vidar Berg — Tue, 10 Nov 2020 13:47:08 GMT

Hi Lei,

Good, you also remembered the NRF_SDH_BLE_SERVICE_CHANGED option. Other things to check:

1. Is ble_dfu_buttonless_async_svci_init() called at the beginnig of main()?

2. Is NRF_DFU_SVCI_ENABLED, BL_SETTINGS_ACCESS_ONLY and NRF_DFU_TRANSPORT_BLE=1 included in the list of pre-processor definitions

Best regards,

Vidar

RE: DFU buttonless with Bond not working.

Lei — Tue, 10 Nov 2020 13:21:29 GMT

Hi Vidar,

Thanks for looking into my case. I did

Change NRF_DFU_BLE_REQUIRES_BONDS to 1
Change NRF_SDH_BLE_SERVICE_CHANGED to 1.

I am successfully done the DFU_buttonless example with bond. So the bootloader for bond should be okay.

I am also successfully integrating DFU_buttonless into my application without bond. I just got problem when I modify the sdk_config.h to set bond to 1 also following the instruction in previous link.

In addition to these setting,

In sdk_config.h in the bootloader:

Change NRF_DFU_BLE_REQUIRES_BONDS to 1
Change NRF_SDH_BLE_SERVICE_CHANGED to 1

- In sdk_config.h in ble_app_buttonless_dfu

Change NRF_DFU_BLE_BUTTONLESS_SUPPORTS_BONDS to 1
Check if NRF_SDH_BLE_SERVICE_CHANGED is not 1 then set it to 1

do I need to change anything else for DFU with bond?

Thanks,

-Lei

RE: DFU buttonless with Bond not working.

Vidar Berg — Tue, 10 Nov 2020 13:08:18 GMT

Hello,

Please make sure you have enabled the NRF_DFU_BLE_REQUIRES_BONDS config option for the bootloader as well. This is required to support the bond sharing mechanism between app and bootloader (Buttonless Secure DFU Service with bonds).

Best regards,

Vidar