because the bootloader cannot be officially unlocked. The device is officially stuck on Android 8.1 Oreo. The "Resurrection" Project (2025/2026):
: As one of the most popular custom ROMs, LineageOS is a great choice for the KEYone. It's based on Android 10 and offers a clean, close-to-stock experience with regular updates. You can find the KEYone-specific build on the LineageOS wiki. blackberry keyone custom rom top