Check your TI-Nspire™ CAS OS Version and Memory
To check the available memory and learn which operating system (OS) your TI-Nspire™ CAS handheld uses, press
HOME > 5: Settings > 4: Status. The amount of memory and version will be listed on the screen.
NOTE: If your handheld does not have the "5: Settings " option, select instead 8: System Info > 5: About to check the OS version. Click ENTER and then HOME > 8: System Info > 4: Handheld Status to check the available memory.
If you have a version 2.1 or earlier, please contact the call center 1.800.TI.CARES who will guide you through the process.
Create free space on your handheld for the new TI-Nspire™ CAS OS
To load TI-Nspire™ CAS OS version 3.9, you will need 15MB free space on your handheld. To free space, please delete or transfer files to a computer.
Download your handheld OS
Download TI-Nspire™ CAS OS version 3.9 and update your handheld using TI-Nspire™ Computer Software. (Note: Once you have upgraded to version 3.9 you are unable to load previous versions of the TI-Nspire™ CAS OS). Detailed instructions are available in
TI Knowledge Base Solution #21390.