: Even if you attempt to flash a GSI version of LineageOS, the locked bootloader will block the installation at the partition level. Project Treble
If you proceed, the community at XDA Developers (specifically the BlackBerry KEY2 Cross-Development section) is your lifeline. Back up your persist partition. And remember:
Some keyboard convenience keys might need remapping.
By carefully following these steps and ensuring you're downloading files from reputable sources, you can successfully install LineageOS on your BlackBerry KEY2, giving it a new lease on life with updated, community-supported software.
You are now in the LineageOS Recovery menu (blue background).
The bootloader must be unlocked. This is a critical step; without it, you cannot install custom recoveries or ROMs.
Leo smiled. “It’s a BlackBerry. But it runs LineageOS. Don’t ask how unless you have a weekend to lose.”
Installing LineageOS transforms the BlackBerry KEY2. It delivers a modern Android experience, up-to-date security patches, improved battery efficiency, and enhanced privacy controls. This comprehensive guide walks you through the entire process of unlocking your bootloader, installing a custom recovery, and flashing LineageOS onto your BlackBerry KEY2. Prerequisites and Risks
But the phone worked. Really worked.
If you have a – impossible. If you have an unlocked variant – proceed carefully, but expect broken hardware features (keyboard, convenience key, notification LED).
(Optional) Download a Google Apps package (GApps) such as MindTheGApps or OpenGApps if you want the Google Play Store and Google Services. Ensure you select the architecture (ARM64) and Android version matching your LineageOS build.
The Ultimate Guide to Installing LineageOS on the BlackBerry KEY2