We get an official BlackBerry OS update and now it’s followed by an unofficial OS for both the BlackBerry Bold 9000 and the Blackberry Curve 8900 and is OS 5.0.0.544 reports an article over on crackberry.

Not as good as an official Blackberry OS release but there are those Blackberry users who don’t mind using leaked OS version so if you are one of those and have a Blackberry Bold 9000 or BlackBerry Curve 8900 this one is for you.

No word on just what this leaked version of OS 5.0.0.455 brings to the BlackBerry Bold 9000 and BlackBerry Curve 8900 so if you do install it feel free to let us know.

As this is an unofficial OS update our usual disclaimer applies and thus you install at your own risk and make sure you back up your data before doing so.