Runs on TI-Nspire CX CAS only. It does not run on computers!
Enter the last 8 digits of your 27-digit TI-Nspire's Product ID.
Located under 5:Settings → 4:Status → About
ID may look like: 1008000007206E210B0BD92F455 HELP.
If this was your ID you would only type in BD92F455.