Texas Instruments TI-84 Plus Silver Edition Graphic Calculator "doesnt work" Questions

Hi. My casio FX-83ES is only giving answers in a fraction format. Ive tried resetting it and doesnt seem to be working. When you go into the set up and select 3 for deg, it still doesnt change the ...

...doesnt work. i was playing with the calculator and the color just faded away what should i do?? TI calculators seem to have an annoying habit of dimming the screen when the batteries are changed ...

...2nd/up doesnt work i have tried to adjust the brightness every way possible to no avail Hello, If the [2nd] key works, reset memory to defaults [2nd][MEM][7:reset][2:Defaults][2:Reset] Hope it ...

My calculator works when turned on but the AC, Divide, Minus and Plus button doesnt work. Buttons on the contact board are dirty, or worn out. Not easly repaired

work, the screen freezes, so you can turn it on and sometimes off but not always, none of the buttons respond, already tried replacing the battery, didn't help. Sometimes it works fine, other times it

...doesnt work. Does it have a battery to change Yes it does. This website shows the battery replacement. The pictures seem to be right to left. Unscrew the back Separate the back from the front Remove ...

...let you type any thing in you sould try to reset the calc. press 2nd/mem/F1/all memory if this doesnt works then you will have to call for

...Any suggestions? try taking out a battery; if that doesnt work, all four; if THAT doesn't work, take out the watch battery as well; if THAT doesnt work, take out everything and leave it ...

doesnt turn on ? its new i just got it ????? I'd check the batteries to see if they are good and check to see that they are installed correctly. If this doesn't work, it may be time to return it. Good

doesnt work at all, i bought new batteries for it still would turn on. Having gone over a month without a reply to my query, I assume my suggestion to adjust the contrast solved the problem.