
All of these upgrade are said, already tested. However, as these OS solution are an unofficial one, if you are interested in getting the new firmware on your BlackBerry device, you would be the only one responsible for any malfunctions that might appear. Make sure to backup all the important data before applying any updates, just in case any unwilling things happen.
Brave enough to proceed? These BlackBerry OS 6.0.0.424 update for Bold 9700, Curve 9300, and Pearl 3G can be found on BBLeaks.