: Likely denotes the version or hardware revision compatibility. .7z : A high-compression archive format. 2. Tools Needed for Extraction
Select 7-Zip > Extract to "BDH-15-4x\" . This creates a folder with the same name to keep the files organized. BDH-15-4x.7z
Select the extracted .bin or .hex file and follow the on-screen prompts. : Likely denotes the version or hardware revision