Texas Instruments TI-89 사용자 설명서

Connectivity

734

4. On the receiving unit, select

5:Receive OS

A warning message displays. Press

N to halt the process, or press ¸ to

proceed. Pressing

¸, displays

VAR-LINK: WAITING TO RECEIVE

and

BUSY

in the

status line of the receiving unit.

5. On the sending unit, select

4:Send OS

A warning message displays. Press

N to halt the process, or press ¸ to start

the transmission.

Important:

•

For each receiving unit, remember to back up information as necessary and install
new batteries.

•

Be sure both the sending and receiving units are in the

VAR-LINK

screen.

During the transfer, the receiving unit shows how the transfer is progressing. When the
transfer is complete:

•

The sending unit returns to the

VAR-LINK

screen.

•

The receiving unit returns to either the Apps desktop or the Home screen. You may
need to use

8 | (lighten) or 8 « (darken) to adjust the contrast.

Do Not Attempt to Cancel an Operating System Transfer

After the transfer starts, the receiving unit’s existing OS is effectively deleted. If you
interrupt the transfer before it is complete, the receiving unit will not operate properly.
You will then need to reinstall the OS upgrade.