This process requires . It involves removing the phone's internal storage chip (eMMC), reprogramming it, and soldering it back onto the motherboard. If done incorrectly, you will permanently "brick" (destroy) the device. Phase 1: Hardware Conversion
BlackBerry OS 10.3.3 is dead. The app store is a ghost town. WhatsApp, Spotify, and even basic Google services have long since moved on. For five years, the consensus was that the Passport was a beautiful paperweight.
Despite the difficulties, there have been notable attempts by the developer community, primarily on forums like XDA Developers and CrackBerry.
Disclaimer: I am not responsible for bricking your $800 paperweight.