umm… my TI 84+ was linked to the computer using a white Canon Usb-mini Usb Cable and was trying to get my newest Awin program out, when the computer told me that access to my calculator was denied. i looked on my calculator, and it said Done like i had ended a prog. and i pushed clear and it said ERR: MEM and i hit Exit and the cursor was checkered. then i checked the Memory on it, and 458699 ARC FREE and 0 Ram Free. i deleted IDINDEX or something like that, and then i Had 21 Ram. I have sinced archived everything, and if it helps the program i was trying to upload was 1430 bytes. i have uploaded a 1397 byte program (rings) just fine. HELP! My dad saw somewhere that someone had a similar problem, and one person said to replace the watch battery, it was for memory. What do i do?
Try this take out all your batteries then put them back in then turn it on while holding the del key that should fix it.
just reset ram by hitting the buttons 2ND, +, 7, 1, 2. that should fix it. and yes, never delete the OS unless absolutely necessary.