: None. Unlike the KEY2, which now has unofficial builds of LineageOS 22.2 (Android 15), the KEYone bootloader has not been publicly "defeated".
Given the nature of these unofficial projects, you are likely to encounter issues. Here are some known problems:
Incredible battery life, minimal RAM usage, and a stock Android feel. blackberry keyone custom rom top
You may need to use advanced tools like Magisk/Play Integrity Fix to pass Google's security checks so banking apps and Google Wallet function properly. How to Prepare for Flashing
Since flashing a ROM is currently limited to hardware-modded units, most users optimize the stock Android 8.1 (Oreo) experience: : None
: The bootloader checks the digital signature of the operating system at startup. Because independent developers cannot sign their code with BlackBerry’s official keys, the device will reject unsigned software like LineageOS or Pixel Experience.
LineageOS is the gold standard of the custom ROM world, known for its clean, stock-Android interface and lightweight footprint. Here are some known problems: Incredible battery life,
variant you have, check under Settings > About Phone to ensure you download the correct ROM files. Blackberry KeyOne
This comprehensive guide covers the top custom ROMs for the BlackBerry KEYone, their benefits, and how to choose the right one for your daily needs. Why Install a Custom ROM on the BlackBerry KEYone?