Flash the new firmware using sas2flsh commands (usually included in such archives). : Connect your external drive enclosure to your PC.
Boot your PC into a DOS environment (or UEFI shell, depending on the toolset). 9220.rar
Run the batch files (e.g., 1.bat , 2.bat ) to backup your current SBR and clear the controller flash. Flash the new firmware using sas2flsh commands (usually
Look for a readme.txt or instructions.pdf inside the archive, as these often contain specific version notes for the 9220 chipset. 9220.rar