If you are looking to flash this ROM to get the full BlackBerry typing experience on modern Android, there is a major catch.
Most exclusive Lineage OS builds for the Passport struggle with the physical keyboard driver. In many versions of this port:
This build is primarily for enthusiasts who want to tinker, not for users looking for a daily driver.
Typical file names:
lineage-14.1-20220218-UNOFFICIAL-passport.zip (Android 7.1.2)
lineage-15.1-20210523-UNOFFICIAL-passport.zip (Android 8.1) blackberry passport lineage os exclusive
If you want to join the cult of the square, here is the skeleton process:
This is the exclusive secret. Most Passport owners cannot install this OS because they are stuck on the stock bootloader. The dev discovered a hardware vulnerability involving the device’s engineering bootrom. Using a custom Python script and a specific USB cable timing, you can unlock the bootloader without a BlackBerry signed key.
This process is dangerous. One wrong step bricks the phone. But for those who succeed, you are part of an exclusive club of ~5,000 users worldwide. If you are looking to flash this ROM
Why isn't this more popular? Why isn't Lineage OS official?
Because the maintainer cannot upstream the code. The audio routing (speaker vs. earpiece) requires a proprietary BlackBerry binary that is legally questionable to distribute. Also, the camera driver is hacked together. You get 13 megapixels, but video recording stops after 4 minutes.
Because this is an exclusive build, the maintainer releases updates via a Telegram channel with a verification bot. You must prove you own a Passport (by sending a photo of the IMEI) to get the download link. This keeps the project alive under the radar but makes it inaccessible to the masses. This build is primarily for enthusiasts who want
Enter Lineage OS, the open-source successor to CyanogenMod. Known for breathing life into old Android phones, Lineage strips away Google bloat (optionally) and optimizes for performance. But porting it to the Passport was considered impossible for years.
The reason is the hardware. The Passport runs on a Snapdragon 801 (MSM8974-AA) with an Adreno 330 GPU. While the chip is capable, BlackBerry encrypted the bootloader tighter than Fort Knox. Furthermore, the 1:1 square screen (1440 x 1440) is an anathema to Android, which assumes a tall, rectangular ratio.