Texas Instruments TI-34II Explorer Plus Calculator "keep saying error" Questions

...saying DATA ERROR 40! READ USER'S GUIDE. CONFIRMED: [EXE], OFF:[ESC]. After confirming it asked if it may clear the storage memory. After saying yes once again it starts clearing but then just jumps ...

...calculator saying syntax error Even if I put 3+1 or 4 times 3, it keeps saying syntax error?? You may be in a wrong MODE. But even in any computational mode you should be able to do simple

...mem. I've already tried resetting my ram memory, it says i have 193936 free for ram and 2686896 free for flash rom. why does it keep spitting out error memory? remove the battery to reset ...

...saying Invalid Dim when I try to Graph it INVALID DIM error message may occur if you are trying to graph a function that does not involve the stat plot features. The error can be corrected by turning ...

...saying math error. That is correct: there is an error in your request. The range of the sine function spans the closed interval [-1, 1]. Thus the domain of the inverse sine function (the arc-sine) is ...

I keep getting an error message saying Yes? What does the error message say? What are you doing when you get this message?

...keep trying to plug in quadratic formulas when I press Y= and it keeps saying error when I try to graph it You're trying to graph a function that does not involve stat plot features. You can correct ...

L1 and L2 won't multiply I keep getting an error message What does the error message say? Are the lists the same size?

..."DUP Error: Too Few Agguments" and is locked up. Tried new batteries, reset button and keeps going back to same screen. Thanks Do you have anything on the stack? The DUP function ...