TI-89 Titanium Calculator

Factory Reset Instructions

1. Press the "Snd Mem" key to display the memory screen.
2. Press the "F1" key.
3. Press the navigation key to select the "RAM" icon, then select "1: All RAM" to erase all data and programs from the random access memory and press the "Enter" key, or select "2: Default" and press the "Enter" key to reset all system variables to original factory settings. This preserves any user-defined variables, functions and folders.
4. Press the navigation key to select the "Flash ROM" icon, then select "1: Archive" and press the "Enter" key to erase all data and programs from the read-only memory or select "2: Flash Apps," then press the "Enter" key to erase all applications from the Flash ROM. Select the "All Memory" icon and press the "Enter" key to erase all data, programs and flash applications from the RAM and Flash ROM.