NOTE: if you are currently running a firmware version earlier than 4.3 please go to: ftp://ftp.lantronix.com/pub/old_rel/scs1620/v4.3/ and download the 3.x-to-4.3 upgrade patch and apply that before installing any of the upgrades below. It is strongly recommended that the 4.4.1 patch be applied immediately after upgrading from v4.3 to v4.4. 1. Read upgrade-4.3.x-to-4.4c.README and Release_Notes-4.4.TXT 2. Follow the procedure in upgrade-4.3.x-to-4.4c.README to upgrade from 4.3.x to 4.4 3. Read upgrade-4.4-to-4.4.1c.README and Release_Notes-4.4.1.TXT 4. Follow the procedure in upgrade-4.4-to-4.4.1c.README to upgrade from 4.4 to 4.4.1 5. Use the same procedure as above to apply the port-perms-4.4.3 and security-4.4.4 patches from the patch directory