Resetting your TI-84 Plus graphing calculator is a good way to return it to its original, factory state. This is useful for teachers who want to clear calculators before a test, or for a student that wants to fix a calculator that is acting oddly.
This How-To guide applies to all models of the TI-84 graphing calculators, including the TI-84 Plus CE, TI-84 Plus, TI-84 Plus Silver Edition, and the TI-84 Plus C Silver Edition calculators.
Step One: Press the [2nd], and then [+] buttons. This will reveal your calculator’s memory options.
Step Two: Select the “Reset…” option by scrolling down to it and pressing enter.
Step Three: You should now see a screen with 3 tabs, “RAM”, “ARCHIVE”, and “ALL”. You have several options when resetting your calculator, hopefully, the following explanations will help you choose the best one.
If you want to quickly get your calculator back to normal, do a RAM reset. If you want to completely delete everything stored on your calculator, reset “All Memory” (this is the option most state tests require).