I have a 990 with older version of Software on the base and handheld. My question, can I just update both with the latest software or is there an incremental process to be followed?
thank you
Simple answer is yes you can just skip past earlier versions with a few exceptions. What version is on it now? See below for Lionel's recommendation. FWIW Once past 1.2 I have yet to need to do a database backup but it certainly won't hurt.
If you are currently running LEGACY 1.1 or earlier, contact customer service before attempting to upgrade.
If you are currently running LEGACY 1.2, your engine roster and other settings will be erased during the upgrade and must be re-entered.
If you are currently running LEGACY 1.3 or later, the 1.72 upgrade will not erase your settings. However, we still recommend using the LSU software to back up your LEGACY database before upgrading. (see LSU manual, page 10).