This is tutorial how to sniff BLE devices using Kismet and NRF51822 Adafruit LE Friend

NRF51822 Kismet.md

Kismet and NRF51822

It doesn't matter, if you bought Le Friend with sniffer firmware or just for debug.

Prerequisites

• Linux system (Arch)
• SWD Programmer ST-LINK V2
• Bluefruit LE Sniffer - Bluetooth Low Energy (BLE 4.0) - nRF51822 - Firmware Version 2
• openocd installed
• wireshark 4.2.5 installed

Flash NRF51822 into sniffer

1. Download zip file V.2.X.X You can also use latest FW called sniffer_nrf51dk_nrf51422_4.1.1.hex because this chip is quite similar to nrf51822 Source
2. get hex file sniffer_pca10028_c87e17d.hex from /hex/ directory. rename it to fw.hex
3. download bootloader from HERE especially bootloader_0002.hex and rename it to bootloader.hex
4. Flash it using openocd
5. Download latest Wireshark plugin HERE V.4.X.X
6. Use this GUIDE to install plugin into wireshark

Don't know why, but probably you need run wireshark as sudo - remember that when you run wireshark as sudo you will have different Personal extcap!!

openocd flashing

erase current firmware

openocd -f interface/stlink.cfg \
-f target/nrf51.cfg \
-c  init \
-c "reset init" \
-c halt \
-c "nrf51 mass_erase" \
-c exit

disconnect ST-LINK and connect it again before upload new sniffer firmware!

upload new sniffer firmware

openocd \
-f interface/stlink.cfg \
-f target/nrf51.cfg \
-c  init \
-c "reset init" \
-c halt \
-c "flash write_image bootloader.hex 0 ihex" \
-c "flash write_image fw.hex 0 ihex" \
-c "reset run" \
-c exit

Now you should be able to use this device with Kismet.

Thanks

Thanks for this GUIDE It helped me a lot, but it doesn't work correctly with my wireshark 4.2.5 and also with kismet too.