Before you enable OTA updates, you must flash a "bootloader-enabled" hex file. The RF Flasher Utility is the standard tool for this initial seed programming. It ensures the CRC (Cyclic Redundancy Check) of the bootloader matches the hardware revision.
RF Test Report – 2026-04-21 14:32:11 ------------------------------------ Device : nRF24L01+ Frequency : 2440 MHz Power set : 0 dBm Measured : -0.2 dBm (Δ 0.2 dB) Freq error : +12 ppm (pass) PER : 0.03% (loopback) Result : PASS rf flasher utility
To use the RF-Flasher Utility, you typically need a hardware debugger to bridge the connection: Before you enable OTA updates, you must flash
Always verify the checksum of your firmware file before starting. or other wireless devices.
An RF Flasher Utility is a software tool used to flash or update the firmware of a device that uses radio frequency (RF) communication. The utility is typically used to reprogram or upgrade the firmware of RF modules, transceivers, or other wireless devices.