How to reset a TI-84 plus

The TI-84 Plus is a graphing calculator made by Texas Instruments which was released in early 2004 and is ideal for high school math and science. Today, 90% of teachers in the US still use handheld calculators like the TI-84 plus as their primary math tool in the classroom. Our article will instruct you on how to reset a TI-84 plus when frozen.

In some cases, your calculator may become unresponsive or frozen, or your TI 84 plus won’t turn on.

Resetting your TI-84 plus

Perform the following steps in order-

Total Time: 2 minutes

  1. Remove all AAA batteries and reinsert them according to the polarity (+ and -) diagrams. Batteries are installed upside down, then right side up, then upside-down, then right side up, which may be different from other products. After reinserting the batteries press [ON].

  2. If the display appears blank after pressing ON adjust the contrast by pressing and releasing the [2ND] key followed by pressing and releasing the [UP] arrow. Repeat a few times. Sometimes the calculator is actually ON but looks like it is not if the contrast is turned all the way down.

  3. Try a fresh new set of AAA batteries, all from the same package After replacing the batteries press [ON], if the calculator display is again not showing try to adjust the contrast (step 2).

  4. Remove one of the AAA batteries. Press and hold [CLEAR]. While holding [CLEAR], reinsert the AAA battery and press [ON]. The calculator should display the message “RAM Cleared”. Release [CLEAR] and then press it one more time to remove the message.

  5. Remove one of the AAA batteries. Press and hold [DEL]. While holding [DEL], reinsert the AAA battery and then press [ON]. The calculator should display “Waiting…Please install calculator software now”. Follow the instructions to reinstall the calculator operating system using either a Windows computer, Mac OSX computer, or Unit to Unit.

  6. Remove all of the batteries including the round lithium battery for 5 minutes. After the 5-minute period, reinsert all of the batteries and turn the calculator on. Adjust the contrast if necessary (step 2).