The (specifically the STSW-BNRGFLASHER package) is a standalone PC application used to program and manage flash memory for STMicroelectronics' wireless System-on-Chips (SoCs), such as the BlueNRG series. Key Features
rf-flasher rf-test --port COM3 --frequency 2450 --power 20 --duration 10 rf flasher utility
Create a batch script today. Test it on a known-good device, then force a bootloader entry on a bricked unit. Once you understand the timing of pulling the RESET and DD pins, you will never fear a dead wireless MCU again. rf flasher utility
You can find the full documentation in ST User Manual UM2406 . rf flasher utility
The GUI version is ideal for manual development and testing.