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Appendix C: Service and Warranty Information 403
5. If the graphing calculator does not seem to work at all, be sure the alkaline batteries are fresh
and that they are installed properly.
6. If the TI-84 Plus does not function even though you are sure that the batteries are fresh, you
can try manually resetting it.
• Remove all of the AAA batteries from the graphing calculator.
• Press and hold the É key for ten seconds.
• Replace the batteries.
• Turn on the unit.
When you reset your graphing calculator, the contrast sometimes changes. If the screen is
faded or blank, adjust the contrast by pressing y and releasing } or †.
7. If the above solutions do not work you can reset all of the memory. The RAM, user data
archive memory, and system variables are restored to factory settings when you reset all
memory. All nonsystem variables, applications (Apps), and programs are deleted.
• Press y L to display the MEMORY menu.
•Select 7:Reset to display the RAM ARCHIVE ALL menu.
• Press ~ ~ to display the ALL menu.
•Select 1:All Memory to display the RESET MEMORY menu.
• To continue with the reset, select 2:Reset. The message Mem cleared is displayed on the
home screen.
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