If you can bypass the bootloader restrictions, here is why you should do it:
There are several reasons why you might want to consider installing a custom ROM on your BlackBerry KEY2: blackberry key2 custom rom
Once you unlock the bootloader, you are not limited to "Key2 specific" ROMs. You can run If you can bypass the bootloader restrictions, here
Finding a Key2 with an unlockable bootloader is the first hurdle, as many models were carrier-locked. Keyboard Driver Loss: the sentiment is unanimous:
After speaking with seven Key2 custom ROM users from the Telegram community, the sentiment is unanimous: