If you cannot enter the code, you may be trying to use a code meant for a single module on the full package (or vice-versa).
: If the code is rejected, verify that the software version installed matches the one listed in your authorization email. Mitcalc Authorization Code
: Unlocks a specific module (e.g., gears, springs) rather than the entire suite . Important Precautions If you cannot enter the code, you may