Change directory to nrf-research-firmware and make install
cd nrf-research-firmware && sudo make
Flash the CrazyRadio PA
nRF24LU1+ chips come with a factory programmed bootloader occupying the topmost 2KB of flash memory. The CrazyRadio firmware and RFStorm research firmware support USB commands to enter the Nordic bootloader.
Dongles and breakout boards can be programmed over USB if they are running one of the following firmwares:
CrazyRadio Firmware
To flash the firmware over USB:
Flash a Logitech Unifying dongle
The most common Unifying dongles are based on the nRF24LU1+, but some use chips from Texas Instruments. This firmware is only supported on the nRF24LU1+ variants, which have a model number of C-U0007. The flashing script will automatically detect which type of dongle is plugged in, and will only attempt to flash the nRF24LU1+ variants.
To flash the firmware over USB onto a Logitech Unifying dongle: