- Press F1 on your TI-89 Titanium Scroll down to About
- Press Enter
- You should see Advanced Mathematics Software Version 3.10
*Before you begin to install any new Apps or update your OS, be sure you have a new set of batteries in your TI handheld for optimum performance.
*Installing OS 3.10 will remove all data including preloaded Graphing Calculator Software Applications (Apps).
Consult TI-Connect Help for details on backing up RAM, Archive and Applications.
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