Telus Canada has released 4.5 OS update for the BlackBerry 8330 and 8130 and is available to download to these BlackBerry versions via the Telus BlackBerry downloads web page.

The official Telus release is BlackBerry 4.5.0.77, although this update is not for the BlackBerry 8830 which for some reason seems to keep being left out in the update stakes which seems to be the case with all CDMA carriers.

BlackBerry owners who what the 4.5.0.77 update must download both the desktop and mobile software to a temporary location on their hard drive and then install the desktop software first followed by the handheld software.

Source — crackberry