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I bought this calculator from another student. But since I have tried to put it into use, it hasn’t worked. I have tried to change the batteries, the back up battery. Tried to restart it. But regardless - when it come back into power the screen eventually just become the same. What can I do?
Best thing to try is going to the Texas instrument website and try to update the calculator. https://education.ti.com/en/software/sea…
