The firmware story reached a definitive turning point in early 2022. While BlackBerry’s legacy services (BB10 and BBOS) were officially decommissioned, TCL’s licensing agreement for the hardware had already ended in 2020. This left the in a state of "frozen" development:
But without an unlocked bootloader, you cannot flash them back. blackberry key2 firmware
The KEY2's firmware came with several key features that set it apart from other smartphones: The firmware story reached a definitive turning point