: If the cockpit displays (PFD/ND) remain black after activation, it often indicates a failed license verification. Ensure your firewall isn't blocking the FSX connection to PMDG's servers.
: You will need to enter the activation code provided to you at the time of purchase. This code is usually found in the purchase confirmation email if you bought it online, or on a card if you purchased it in a physical store. fsx pmdg 737 ngx activation code
Some users reported that they had purchased the aircraft from a third-party seller, only to find that the activation code was already linked to someone else's computer. Others reported that they had upgraded their computer hardware, only to find that the activation code was no longer valid. : If the cockpit displays (PFD/ND) remain black
: The FSX version of the 737 NGX was removed from the PMDG store in 2019 following the release of the updated "NGXu" for Prepar3D. Steam Community Operating Systems This code is usually found in the purchase
: Once the flight loads, an activation window should automatically pop up.