Quote from: critor on March 26, 2013, 06:44:15 am

It looks like a sample (not a prototype), yes, but informations so far match the production hardware and not the development hardware.

By the way, could you share a photo of the back of the calculator with us please?

But "NSC" would be Nspire Color ? "4+4 layer" would be about the motherboard layers ? looks a bit surprising if that's the case.

When your calculator boots, do you have a small blank sign/symbol in the top left-hand corner of the screen?

If yes, your calculator is operating in development mode and will only accept development OSes unless this can be changed.
If no, you're supposed to be able to load it with any compatible production OS.


In order to solve the "4+4 layer" mystery, you'll need to open the calculator and show us some pictures of the motherboard.
We can then compare those with our own pictures.

Yes, performing the complete format and reinstalling an OS should solve your problem.

Once you've removed the screws, opening the calculator is quite easy by just applying pressure inside the battery compartment.
2 screws are usually hidden under both top pads.

We'd still like to have shome photos of the 4-layer PCB