The decoded CX Boot2 is correct.
It's just that the EOF code has been removed from that new CX Boot2.

But it then has to be decrypted, which means you need the CX Boot1.

I like TraNspire

I'm not sure I understand correctly your problem, but the emulator communicates neither with a real calculator, nor with TI's software (TI-Nspire Computer Link Software a.k.a "TINCLS", TI-Nspire Computer Software a.k.a "TINCS").

I'm afraid I still don't understand what you're trying to do, but maybe I'm just thick

With the emulator we can use the CAS functions on a non cas spire calculator, right?

makes me think that you don't want to emulate a Nspire calculator on your computer (which you can do as described in the page you linked to, adding a /C switch to the final nspire_emu / ncubate invocation if you want to emulate a CAS calculator). Instead, I think that you want to try to use the CAS OS on your real, non-CAS Nspire calculator. Is that right ?

The nspire_emu / ncubate emulator doesn't communicate in any way with a real Nspire, and is not involved in making a real non-CAS calculator run the CAS OS.

Indeed, the third-party PC emulator is just a PC emulator, and the official TI Nspire Computer Software does not even emulate the calculator, it's a similar code base recompiled for Windows and MacOS X

Do you think it will possible someday to make the CAS work in a real calc?  that would be great!!

It became possible to hot-launch "other" OS during the spring of 2010, but "RunOS" was never released, for fear TI would lock down the calculators even further.
About one year later, and after TI added lots of lockdown, an independent reimplementation of RunOS was released as OSLauncher, which you can download from http://www.ticalc.org/archives/files/fileinfo/437/43701.html . OSLauncher itself did obviously not mention the dirty little secret that it could launch the CAS OS on the Nspire sold as non-CAS (but perfectly CAS-capable), but critor made a tutorial, which dramatically raised both usefulness and public awareness of OSLauncher. It can be downloaded from TI-Planet , the required OS can be downloaded from TI-Planet again, and you'll have to somehow find the "imgdump" tool

Several notes:
* OSLauncher requires Ndless 2.0, so it will work only on Clickpad & Touchpad calculators running OS 1.7.2741, 2.0.1.60 or 2.1.0.631;
* Ndless and OSLauncher must be launched again after every reboot;
* as is, OSLauncher cannot be used to cheat in standardized tests, unless said tests do not use the built-in Press To Test functionality (which triggers a reboot);
* due to changes in internal files across versions, it can launch only an OS of the same version as the host OS (1.7.2741, 2.0.1.60, 2.1.0.631);
* there will be some glitches, e.g. CAS functions not appearing in the functions catalog, odd display of the HOME screen on OS 1.7, etc.;
* and most of all, hot-launching the CAS OS on models sold as non-CAS can be extremely picky. It seems that it either works on the first or second try, or it might just happen to work, if you're lucky, after dozens of attempts...

OSLauncher just launches the other OS, it does not install it in any way; just reboot the calculator and the effect of OSLauncher is gone

Is anyone making a CX emulator? Or is it similar enough to the old Nspire that it would be just an update with some changes of the nspire emulator?

So I'm betting there could be a Nspire CX emu, but finding the boot1 images or roms will be a major PITA, leading to many forum posts asking where can we find them?