You cannot download a Passport_Android_10.zip file and flash it via TWRP. The Passport’s bootloader is locked tighter than Fort Knox, and the underlying hardware drivers are proprietary to BlackBerry’s QNX kernel.
: Because retail Passports have locked bootloaders, developers often perform a "chip swap," desoldering the original eMMC storage and replacing it with a new one that allows custom software. blackberry passport android rom
Unlike a full ROM, the retail BlackBerry Passport shipped with an . This was an emulation layer within BB10 that allowed users to side-load Android .apk files. However, this environment is capped at Android 4.3 (Jelly Bean) , rendering modern apps—which often require Android 8.0 or higher—completely unusable. You cannot download a Passport_Android_10