RE: Request to enter bootloader mode failed asynchronously.

Jonathan — Wed, 23 Jan 2019 17:26:50 GMT

Setting #define NRF_SDH_BLE_SERVICE_CHANGED 1 Fixed this issue. The phone needed to be turned off and on again in order to completely erase the cache. forgetting the bluetooth device did not do this on it's own.

RE: Request to enter bootloader mode failed asynchronously.

Jonathan — Wed, 23 Jan 2019 17:12:49 GMT

Somehow I didn't have this set:
NRF_SDH_BLE_SERVICE_CHANGED 1

However now, I am getting
"Enabling indications failed"
When trying to perform a bonded DFU.

I also can not enable indications on the DFU characteristic manually via the LightBlue GATT client app

RE: Request to enter bootloader mode failed asynchronously.

bjorn-spockeli — Wed, 23 Jan 2019 09:46:32 GMT

Hi Jonathan,

which nRF52 IC are you using? Also which SDK version and SoftDevice are you using?

I took a look in SDK v15.0.0 and the buttonless DFU example prints

NRF_LOG_ERROR("Request to enter bootloader mode failed asynchroneously.");

when the BLE_DFU_EVT_BOOTLOADER_ENTER_FAILED event is passed by the Buttonless Secure DFU service. This event is generated in either ble_dfu.c or ble_dfu_bonded.c.

In ble_dfu.c the BLE_DFU_EVT_BOOTLOADER_ENTER_FAILED is returned at one location

If ble_dfu_buttonless_bootloader_start_prepare() at line 194 in on_hvc() ruturns a non-zero error code, i.e. not NRF_SUCESS.

In ble_dfu_bonded.c. BLE_DFU_EVT_BOOTLOADER_ENTER_FAILED is passed to the event handler at four locations,

If ble_dfu_buttonless_bootloader_start_finalize() returns a non-zero error code when the PM_EVT_PEER_DATA_UPDATE_SUCCEEDED event is processed in pm_evt_handler()
If ble_dfu_buttonless_bootloader_start_finalize returns a non-zero error code when the PM_EVT_PEER_DATA_UPDATE_FAILED event is processed in pm_evt_handler()
If ble_dfu_buttonless_resp_send at line 266 returns a non-zero error code in ble_dfu_buttonless_on_sys_evt()
If ble_dfu_buttonless_resp_send at line 358 returns a non-zero error code in ble_dfu_buttonless_on_ctrl_pt_write()

Can you please place a breakpoint at these 5 locations and see which one is triggered?

Best regards
Bjørn