Once in fastboot mode, try the command: fastboot flashing unlock . Follow the on-screen prompts on your phone to confirm.
To install LineageOS, you need a custom recovery environment. blackberry key2 lineageos install
The fantasy is this:
The quest to install on the BlackBerry Key2 is a saga of overcoming high-security barriers . Long considered impossible due to its locked bootloader and "Root of Trust" security, the device has recently seen a breakthrough via community-driven exploits. The Bootloader Breakthrough Once in fastboot mode, try the command: fastboot
So, is there any hope for a KEY2 owner who wants a cleaner, more private Android experience? Yes, but it is a compromise. The fantasy is this: The quest to install
You may need to install a "BlackBerry Keyboard" APK or use a third-party app like Button Mapper to regain the functionality of the Speed Key and currency keys.
High risk of "bricking" if the bootloader isn't properly unlocked first. Stability: