device name display NA

[Liu]

Hi......

the board advertising correct,and it work normal (connect,send and receive data),bug it's name can not display in app scan menu. the definition is "liu",but displaying is "na", what is the problem probably cause ？ init code as follow:

    uint32_t      err_code;
ble_advdata_t advdata;

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

advdata.name_type               = BLE_ADVDATA_FULL_NAME;
advdata.include_appearance      = false;
advdata.flags                   = BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
advdata.uuids_complete.p_uuids  = m_adv_uuids;

ble_adv_modes_config_t options = {0};
options.ble_adv_fast_enabled  = BLE_ADV_FAST_ENABLED;
options.ble_adv_fast_interval = APP_ADV_INTERVAL;
options.ble_adv_fast_timeout  = APP_ADV_TIMEOUT_IN_SECONDS;

err_code = ble_advertising_init(&advdata, NULL, &options, on_adv_evt, NULL);
APP_ERROR_CHECK(err_code);