My TI-83 calculator is not turning on. I replaced all batteries, adjusted contrast and still nothing. I even removed all batteries and hold down ON button as someone suggested and still nothing. What is the next step?
Office Equipment & Supplies - Texas Instruments - TI-83 Plus Calculator
Answers & Comments
Hi, remove one of the AAA batteries. Press and hold the DEL key. While holding DEL, reinsert the AAA battery and then turn the calculator on. The calculator should display "Waiting...Please install calculator software now". Follow the instructions for the TI-83 family or TI-84 Plus family to reinstall the calculator operating system.