Texas Instruments TI-89 Titanium Short User Manual page 130

When in OS download mode, the Automatic Power Down™ (APD™)
feature does not function. If you leave your device in download mode for
an extended time before you actually start the downloading process,
your batteries may become depleted. You will then need to replace the
depleted batteries with new batteries before downloading.
If you accidentally interrupt the transfer before it is complete, you will
need to reinstall the OS. Again, remember to install new batteries before
downloading.
Backing Up Your Unit Before an Operating System
Installation
When you install an OS upgrade, the installation process:
• Deletes all user-defined variables (in both RAM and the user data
archive), functions, programs, and folders.
• Could delete all Flash applications.
• Resets all system variables and modes to their original factory
settings. This is equivalent to using the
memory.
To retain any existing variables or Flash applications, do the following
before installing the upgrade:
• Important: Install new batteries.
• Transmit the variables or Flash applications to another device.
– or –
• Use a USB cable or TI Connectivity Cable USB and TI Connect™
software (education.ti.com/downloadticonnect) to send the variables
and/or Flash applications to a computer.
Where to Get Operating System Upgrades
For up-to-date information about available OS upgrades, check the Texas
Instruments Web site at education.ti.com/downloadticonnect.
You can download an OS upgrade or Flash application from the Texas
Instruments Web site to a computer, and use a USB computer cable to
install the OS or application on your TI-89 Titanium.
For complete information, refer to the instructions on the web.
Transferring the Operating System
OS software will transfer only from a TI-89 Titanium to a TI-89 Titanium,
TI-89 to a TI-89, from a Voyage™ 200 to a Voyage™ 200, or from a
TI-92 Plus to a TI-92 Plus.
124
screen to reset all
MEMORY
Connectivity