Texas Instruments Organizer for the TI-83 Plus - Manual (Page 39)

Organizer for the TI-83 Plus Page 39
Miscellaneous
If you obtain new or upgraded software for your TI-83 Plus, you
may need to provide your current software version and/or the
serial number of your unit. It is also good to know your version
number in case you have difficulties with your TI-83 Plus and
need to contact technical support. Knowing the software version
may make it easier to diagnose the problem.
Verify Maintenance Upgrade Version and Serial Number
On the TI-83 Plus, press y L , and then select 1:About . The
version number has the format x.yy. The serial number appears
on the line beneath the product ID number.
Verify Flash Application Version
On the TI-83 Plus, press Π. Select the appropriate application
and press Í . The version number of the application appears
on the initial screen.