This is an update on our famous guide “HowTo Upgrade BlackBerry OS” which still contains all information you need but might be outdated regarding the links to download your new BlackBerry OS.
1. To upgrade your BlackBerry to the latest OS version, you have to go to the provider-specific download page:
2. The most recent BlackBerry Desktop software is available here: http://www.blackberry.com/support/index.shtml
In most cases it is also possible to install an update from a different carrier (if they have the same BlackBerry model). This might be useful if your carrier does not provide the most recent version you need or you want to have a special foreign charset support. For example, you can install the “Hong Kong CSL” version to have Chinese character and input support (the Operation System will still be English).
To install a OS update from a different carrier you have to delete C:\Program Files\Common Files\Research In Motion\AppLoader\VENDOR.XML first.
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