On official OS, you can swipe left to delete words or slide up/down on the keyboard to scroll. On a custom ROM, the keyboard is just 35 mechanical buttons. The capacitive touch layer has no driver in the Generic Kernel Image (GKI). Unless Qualcomm releases the source code (they won't), the "Magic Keyboard" is dead.
On paper, the KEY2 is a perfect custom ROM candidate. Its standout feature—that capacitive, gesture-enabled keyboard—is pure hardware. A good developer could theoretically map the keyboard for scrolling, hotkeys, or launching apps. Its 4.5-inch 3:2 display is unique and beloved. Under the hood, the Snapdragon 660 is modest but capable. blackberry key2 custom rom
The reality, however, is a developer’s nightmare. The KEY2 runs on a highly proprietary, locked-down Qualcomm chipset. BlackBerry (via TCL) baked in its infamous DTEK security suite and a verified boot process that fights every step of unlocking the bootloader. To date, no public, stable custom ROM (like LineageOS or /e/OS) exists for the KEY2 or its sibling, the KEY2 LE. On official OS, you can swipe left to
The BlackBerry KEY2 (BBF100-1, BBF100-2, BBF100-6, etc.) runs Android 8.1 Oreo officially, with no OS updates beyond that. Many users want a custom ROM for a newer Android version, better performance, or de-Googled experience. Unless Qualcomm releases the source code (they won't),
Note: Development for the Key2 is not as active as mainstream phones. Always check XDA Developers for the latest builds.