HOW AND WHERE CAN I DOWNLOAD AND RELOAD OS

Question

Please I need assistance on where I can download blackberry OS to my PC(personal computer) and how I can reload my phone OS with or from my computer

Answer 1

Device operating system releases are "released" by specific carriers once they have certified and trained their support techs, but still, you are able to load to any carrier's same model by following the instructions below.
See the link below for the download, and follow these simple installation instructions.
First locate your carrier and the OS file you wish to use.
http://na.blackberry.com/eng/support/downloads/download_sites.jsp
Do a backup of your device first, using Desktop Manager > Backup. Close Desktop Manager upon completion.
1. Download the OS file to the PC then install it to the PC by running (double clicking) the file you downloaded.
2. Go to c:\program files\common files\research in motion\apploader and delete the file named "vendor.xml." (You might have another Vendor.xml file hiding on your computer. Open Windows Explorer and under the Organize button (on Windows 7, there are similar tools for Vista and XP) click on "Folder and search options." Under the View tab, make sure that your computer is set to show hidden folders and files. Once you've done this, search your C:\ drive for "Vendor.xml".)
3. Plug in BB and double click on "Loader.exe." It's located in the same place as the above vendor.xml file.
**Starting with the later OS6 releases, there are now three copies of VENDOR.XML
C:\Program Files\Common Files\Research In Motion\AppLoader (for 32-bit Windows XP/Vista/7)
==========OR============
C:\Program Files (x86)\Common Files\Research In Motion\AppLoader (for 64-bit Windows Vista/7)
C:\Documents and Settings\*name*\AppData\Roaming\Research In Motion\BlackBerry\Loader XML
C:\Documents and Settings\*name*\Application Data\Research In Motion\BlackBerry\Loader XML
You can also just search for VENDOR.XML. Make sure that you choose ADVANCED SEARCH and include hidden files. It should show the file in at three locations. Delete every copy that it finds.
Note: Some users might worry they will void their device warranty by loading an OS from another carrier. There is really nothing to worry about. Please read more information on that here: http://www.port3101.org/power-users/296-blackberry-os-upgrade-including-betas-myths-dispelled.html
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