cannot install nrf Sniffer firmware for bluetooth on nRF52840

[DrCoolZic]

I have bought an nRF52840 to sniff BLE packets. I have followed the user guide v4.1.x to install all SW on Windows 10 : So far I have downloaded nRF Sniffer for Bluetooth LE 4.1.1 and installed nRF Connect for Desktop. I load the programmer and I select DFU bootloader. In the Device memory layout I can see that it found the nRF52480 and it display the layout. Now I drop the sniffer_nrf52840dk_nrf52840_4.1.1.hex file in the file memory layout .

Now I am suppose to click erase & write but the command is greyed ???

the log file shows:

2024-09-19T11:26:39.937Z INFO Initialising nrfutil module: device
2024-09-19T11:26:40.097Z DEBUG Application data folder: C:\Users\Jean\AppData\Roaming\nrfconnect\pc-nrfconnect-programmer
2024-09-19T11:26:40.138Z DEBUG App pc-nrfconnect-programmer v4.4.0 (official)
2024-09-19T11:26:40.138Z DEBUG App path: C:\Users\Jean\.nrfconnect-apps\node_modules\pc-nrfconnect-programmer
2024-09-19T11:26:40.138Z DEBUG nRFConnect 5.0.2, required by the app is (>=4.4.1)
2024-09-19T11:26:40.138Z DEBUG nRFConnect path: C:\Users\Jean\AppData\Local\Programs\nrfconnect\resources\app.asar
2024-09-19T11:26:40.138Z DEBUG HomeDir: C:\Users\Jean
2024-09-19T11:26:40.138Z DEBUG TmpDir: D:\Temp
2024-09-19T11:26:41.660Z INFO Using nrfutil-device core version: 7.13.0
2024-09-19T11:26:42.646Z INFO Using nrfutil-device version: 2.1.1
2024-09-19T11:26:42.646Z INFO Using nrf-device-lib version: 0.17.5
2024-09-19T11:26:42.647Z INFO Using nrfjprog DLL version: 10.24.0
2024-09-19T11:26:42.647Z INFO Using JLink version: JLink_V7.94e
2024-09-19T11:26:43.221Z INFO Getting serialport options from persistent store EF408B023F48.pc-nrfconnect-programmer
2024-09-19T11:27:17.084Z INFO Using nrfutil-device to communicate with target via USB SDFU protocol
2024-09-19T11:29:29.949Z INFO Parsing HEX file:  U:\__DEV__\VSCode\DreamMachine\doc\Bluetooth\nrf_sniffer_for_bluetooth_le_4.1.1\hex\sniffer_nrf52840dk_nrf52840_4.1.1.hex
2024-09-19T11:29:29.956Z INFO File was last modified at  20/10/2022 16:18:06
2024-09-19T11:29:30.004Z INFO Update files regions according to Application core
2024-09-19T11:29:30.005Z INFO Parse memory regions for file

I do not understand what is wrong ?

[Vidar Berg]

Hello, 

Please select the hex file for the dongle (sniffer_nrf52840dongle_nrf52840_4.1.1.hex) instead. 

Best regards,

Vidar

[DrCoolZic]

So stupid! Thanks it works

Jean

[Vidar Berg]

Thanks for confirming that it worked. It is an easy mistake to make. The DK hex would probably have worked too if you had been able to program it. But it can't be programmed over DFU since it includes the MBR section between 0x0 and 0x1000.