Hi yalewoo.
So you've got a TI-Nspire CM running TI-Nspire CX OSes.
1) and 2) Give me some time to think about it, but removing Nlaunch CXM is dangerous.
Because if you don't undo all modifications, your TI-Nspire CM may get stuck in a state in which it won't be able to install CX/CM OSes anymore.
I think a full uninstall requires :
- reflashing the CM Boot2 3.1 *without* rebooting
- reset your model ID from TI-Nspire CX (0x0F/0x10) to TI-Nspire CM (0x11/0x12)
(reflashing the Manuf with BtMg/nsNandMgr won't reset this, since these are critical and thus protected values)
Some first thougts :
- don't uninstall/remove anything
- keep the CX 3.1 Boot2 in your Boot2 partition - don't overwrite it - so if nBoot+ControlX gets uninstalled for some reason, you can still use Nlaunch CXM
- put the Boot2 4.0.3 required for nBoot+ControlX to be fully working in the Diags/ExtnD partition, as indicated in the tutorial
Note that your TI-Nspire CM has only 32MiB SDRAM.
OSes 3.6/3.9 are huge.
With the CX CAS 3.9.1 OS, you can't even install Ndless because there is no SDRAM left.
You'll be able to install it by staying with the CX CAS 3.6 OS which is slightly smaller, but you'll probably run into SDRAM problems when launching non-tiny Ndless programs.
Staying with OSes 3.1/3.3 might be a better choice...
3) Boot1 3.0.0.99 has some flaws, that's all.
And since it cannot be written to, there is no way to fix it on models coming with this version.
nBoot+ControlX require your calculator to boot on the Diags partition, in which you're going to put Boot2 4.0.3.
Indeed, the OS is going to update the Boot2 image in the Boot2 partition, but not in the Diags partition.
So Boot2 4.0.3 is here forever.