Back on topic:  Is there any way to COMPLETELY, and I mean COMPLETELY wipe and nspire's memory and then download an older OS?

Yes, you can. But most likely you will need a rs232 level converter for that, in order too hook your nspire to your computer.

No, not for the CX, since TI blocked the ability to update stuff (OS) via rs232 on the CX (XMODEM)

No, but there isn't any reason why you should, as there is no pre 3.0 os that will run on it.

How come when I use certain programs with my 84+ keypad, the calculator resets?

Because the emulator sucks. More specifically, it resets when it fetches an unrecognized instruction, and it doesn't recognize a lot of instructions which work on every Z80 processor but aren't officially documented by Zilog.

Is there any way to program those instructions into it?

No.

Wouldn't they have to come out with Ndless 3.0 first?

Quote from: DJ_O on October 26, 2011, 07:18:06 pm

TI's actions are why some people in the past started projects such as DreamCalc, UberGraphX and OTCalc, in attempt to offer a powerful calc for less than what TI charges for their calcs and with more freedom for programming. However such project is a major undertaking, which is why all of them usually die, and breaking TI's monopoly would be next to impossible.

I'm still working on it, I just have never posted about it (hellllloooo, topic, where do you goooo?) and btw I might change the name since there's already something called Dreamcalc.

I'm betting the search engine of the site (if searching from the board index) could probably find it.

We could try making a competent emulator using Ndless, though.

Didn't you make one? (I even have the copy. It didn't work with Garbage COllecting and 2nd+ON tho )