There have been attempts to use exploits (like those for Snapdragon S4 chips) to unlock the bootloader, but they have largely failed on retail Q20 units.
is currently not possible in a traditional sense due to the device's locked bootloader and proprietary QNX-based architecture. While the Q20 was a pinnacle of physical keyboard design, its software security measures have largely prevented the enthusiast community from porting modern Linux kernels directly to the original hardware.
This gives you a full Linux desktop on your phone screen with keyboard support, but the actual processing happens elsewhere. 2. Sideloading Android-based Terminal Apps