nrfutil dfu ble failed with Exception: Connection Failure - Device not found! on Windows 10

RE: nrfutil dfu ble failed with Exception: Connection Failure - Device not found! on Windows 10

snowuyl — Fri, 05 Aug 2022 01:43:13 GMT

Thanks for your reply! I have fixed this issue by adding code to toggle POWER_UP GPIO pin to logic high. Besides I have another question that is how can I know when bootloader enter or leaving DFU mode. I would like to to toggle POWER_UP GPIO pin to logic high when enter DFU mode and toggle POWER_UP GPIO pin to logic low when leaving DFU mode.

int main(void)
{
    uint32_t ret_val;
    nrf_gpio_pin_set(POWER_UP);
    nrf_gpio_cfg_output(POWER_UP);

...

}

RE: nrfutil dfu ble failed with Exception: Connection Failure - Device not found! on Windows 10

Vidar Berg — Thu, 04 Aug 2022 11:59:09 GMT

Please check if the device still advertises as "ANCS2" after the failed DFU attempt. This will indicate if the device failed to enter DFU mode or not after the "enter dfu mode" command (Message sequence charts).

RE: nrfutil dfu ble failed with Exception: Connection Failure - Device not found! on Windows 10

snowuyl — Thu, 04 Aug 2022 04:07:56 GMT

devzone.nordicsemi.com/.../2210.ota.c devzone.nordicsemi.com/.../8156.advertising.c

RE: nrfutil dfu ble failed with Exception: Connection Failure - Device not found! on Windows 10

snowuyl — Thu, 04 Aug 2022 01:30:04 GMT

RE: nrfutil dfu ble failed with Exception: Connection Failure - Device not found! on Windows 10

snowuyl — Thu, 04 Aug 2022 01:26:12 GMT

The hex files I uploaded run on a nRF52832 customer board. I try to use iOS nRF Connect APP to perform DFU. But it failed with "scanning timeout returning no matching peripheral". Why no bootloader log messages after BLE_DFU_EVT_BOOTLOADER_ENTER_PREPARE event?

The following is log messages of nRF52832 device.

00> <info> app: Version 1.2.1
00>
00>
00> <info> app: ========| flash info |========
00>
00> <info> app: erase unit: 4096 bytes
00>
00> <info> app: program unit: 4 bytes
00>
00> <info> app: end address: 0x72000
00>
00> <info> app: ==============================
00>
00> <info> app_timer: RTC: initialized.
00>
00> <info> app: Setting vector table to bootloader: 0x00072000
00>
00> <info> app: Setting vector table to main app: 0x00026000
00>
00> <debug> app: bleDfuInit() return 0
00>
00>
00> <debug> app: NOR_DATA_PERIOD=819
00>
00>
00> <debug> app: NOR_RECORD_PERIOD=8192
00>
00>
00> <info> app: bsp_button_longkey_handler 0.
00>
00> <warning> app: Battery volage 0mV is too low
00>
00>
00> <warning> app: Battery volage 3374mV is too low
00>
00>
00> <info> app: POWER_ON.
00>
00> <info> app: External devices initializing start
00> <info> app: External devices initializing finish
00>
00> <info> app: bsp_button_longkey_handler 1.
00>
00> <debug> nrf_ble_gatt: Requesting to update ATT MTU to 185 bytes on connection 0x0.
00>
00> <info> app: BLE_GAP_EVT_CONNECTED
00>
00>
00> <debug> app: state=1
00>
00>
00> <info> app: BLE_GAP_EVT_PHY_UPDATE_REQUEST
00>
00>
00> <debug> nrf_ble_gatt: Peer on connection 0x0 requested a data length of 251 bytes.
00>
00> <debug> nrf_ble_gatt: Updating data length to 27 on connection 0x0.
00>
00> <debug> nrf_ble_gatt: Data length updated to 27 on connection 0x0.
00>
00> <debug> nrf_ble_gatt: max_rx_octets: 27
00>
00> <debug> nrf_ble_gatt: max_tx_octets: 27
00>
00> <debug> nrf_ble_gatt: max_rx_time: 2120
00>
00> <debug> nrf_ble_gatt: max_tx_time: 2120
00>
00> <debug> nrf_ble_gatt: ATT MTU updated to 185 bytes on connection 0x0 (response).
00>
00> <debug> app: _securityRequestHandler
00>
00>
00> <info> app: BLE_GAP_EVT_SEC_PARAMS_REQUEST
00>
00>
00> <info> app: PM_EVT_CONN_SEC_SUCCEEDED
00>
00>
00> <info> app: Connection secured: role: 1, conn_handle: 0x0, procedure: 1.
00>
00> <info> app: BLE_GAP_EVT_AUTH_STATUS
00>
00>
00> <info> app: BLE_DFU_EVT_BOOTLOADER_ENTER_PREPARE

RE: nrfutil dfu ble failed with Exception: Connection Failure - Device not found! on Windows 10

Vidar Berg — Tue, 02 Aug 2022 12:12:30 GMT

Hello,

Are the hex files you uploaded supposed to run on a nRF52 DK board? I tried to program them to a 52 DK here, but it did not start to advertise.

Also, have you tried performing DFU from the Bluetooth low energy app as well, and in that case, what error did you get?

RE: nrfutil dfu ble failed with Exception: Connection Failure - Device not found! on Windows 10

snowuyl — Tue, 02 Aug 2022 03:13:31 GMT

devzone.nordicsemi.com/.../7802.ota.c devzone.nordicsemi.com/.../8463.ota.h

RE: nrfutil dfu ble failed with Exception: Connection Failure - Device not found! on Windows 10

snowuyl — Tue, 02 Aug 2022 03:00:21 GMT

devzone.nordicsemi.com/.../nrfdfu.rar

RE: nrfutil dfu ble failed with Exception: Connection Failure - Device not found! on Windows 10

snowuyl — Tue, 02 Aug 2022 02:59:29 GMT