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Operating System not found. Install OS now.
A TI‐nspire CAS Touchpad calculator that returns this
message at start up has either a corrupted operating
system or no operating system installed.
In most cases the documents folder is unaffected and
the device will still be recognised by TI‐nspire Computer
Link or the TI‐nspire computer software. If you wish to
back up your calculator files this should be done before
following these steps by copying the entire documents
folder to the computer.
Step 1 – Maintenance Menu
The maintenance menu provides an inbuilt method of
deleting remnants of an incomplete or corrupted
operating system. To access the maintenance menu the
calculator must be turned off completely. This can be
done by removing all the batteries or by pressing the
reset button. If you have a rechargeable battery
installed, the reset button is the fastest option.
Remove batteries
Detach the keypad and remove two
batteries, one from each of the two slots.
Wait for 5 seconds before reinserting the batteries.
Replace the keypad then press and hold: [DOC] + [Enter] + [EE] while
turning the calculator on. Keep holding the three keys until the
maintenance menu is displayed.
Reset button
Press and hold: [DOC] + [Enter] + [EE] and press the reset button on the
reverse side of the calculator. (You may need a friend to help you.) Keep
holding the three keys until the maintenance menu is displayed.
Step 2 – Maintenance Options
Select option four:
[4] ‐ Complete format
© Texas Instruments
http://education.ti.com
TI‐nspire CAS Touchpad
Computer to Unit Transfer
Page 1 of 3
TI-nspire Touchpad OS reinstall C2H
FAQ – 20/04/11
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Summary of Contents for Texas Instruments TI-nspire CAS Touchpad
- Page 1 Remove batteries Detach the keypad and remove two batteries, one from each of the two slots. Wait for 5 seconds before reinserting the batteries. Replace the keypad then press and hold: [DOC] + [Enter] + [EE] while turning the calculator on. Keep holding the three keys until the maintenance menu is displayed. Reset button Press and hold: [DOC] + [Enter] + [EE] and press the reset button on the reverse side of the calculator. (You may need a friend to help you.) Keep holding the three keys until the maintenance menu is displayed. Step 2 – Maintenance Options Select option four: [4] ‐ Complete format © Texas Instruments Page 1 of 3 TI-nspire Touchpad OS reinstall C2H http://education.ti.com FAQ – 20/04/11...
- Page 2 Step 6 – Operating System not found The old or corrupted operating system has now been completely removed. The calculator is now ready to accept the new operating system. Connect the calculator to a computer with either the TI‐nspire CAS or TI‐nspire Computer Link software. Note: The software may automatically prompt for the installation of a new operating system. If this occurs, press [continue] and follow the prompts. This step may require access to the internet if the file is not on the computer. © Texas Instruments Page 2 of 3 TI-nspire Touchpad OS reinstall C2H http://education.ti.com FAQ – 20/04/11...
- Page 3 Select the corresponding operating system then click [Install OS] Select [Yes] to continue for the operating system upgrade. Installation is in progress. Do NOT unplug the calculator until prompted to do so. Removing the cable prior to operating system transfer will corrupt the file. Once the operating system has been installed the calculator will restart automatically. On restart the calculator provides options for a variety of settings including the font size and language. © Texas Instruments Page 3 of 3 TI-nspire Touchpad OS reinstall C2H http://education.ti.com FAQ – 20/04/11...