nRF52840 Dongle Not Responding

[BT_Fan]

Hi,

I'm using the nRF52840 dongle. Using nRF Connect v2.5.0 - Programmer (experimental) tool, I've downloaded the following hex files:

softdevice_s140.hex,

ble_app_buttonless_dfu_with_bonds_s140_with_setting_page.hex, and

bootloader_secure_ble_debug_with_bonds_s140.hex

Now my dongle in not recognized by Windows 10 Device Manager and I can't do anything with it.

1. Is there a way to recover/revive this dongle?

2. What combination of hex files do I need to download in order to get basic BLE functionality?

Thank you!

[Sigurd]

Hi,

BT_Fan said:

1. Is there a way to recover/revive this dongle?

Yes. Plug the dongle in your computer, and press the RESET button. When the nRF52840 Dongle has entered the bootloader mode, LD2 pulses red. The Dongle is now ready for programming. See this page for more information.

BT_Fan said:

2. What combination of hex files do I need to download in order to get basic BLE functionality?

For basic BLE functionality, you will need the S140 SoftDevice and an application. Try one of the example applications in the ble_peripheral folder in the SDK for the pca10059. Note that the precompiled examples hex-files includes both application and SoftDevice. E.g. for the ble_app_hrs example, try the hex file ble_app_hrs_pca10059_s140.hex in the folder SDK15.1_folder\examples\ble_peripheral\ble_app_hrs\hex

[BT_Fan]

Hi,

That worked.

Thank you