This is a blog about how to upgrade your Blackberry operating system without waiting for your carrier to push it. There are a number of things you will need to do before this can occur. This is for PC running Window 7, it may be different for Windows Vista, XP or 8.
1) Own a Blackberry smartphone!
2) Download Desktop Manager
3) USB cable (check your charger, it could be 1)
4) Computer sense or twitter ppl like @furiousguido or @jimz22
Step 1) Connect your phone to your computer via the USB cable – In BB7 models the charger is also a USB cord which can be used to connect your device.
Step 2) Allow Desktop manager to connect to the device and see if there is an update from your carrier. If so, follow the prompts and your done 
Enjoy
Step 3) Back up your device! <— Can’t stress this enough.
This is where you click to backup your phone.
Step 4) When completed; go to a safe, tested site like Blackberryos.com for your new OS update.
BlackberryOS.com
Step 5) There is a decision to be made here. You can go for an official operating system or a leaked one. An official operating system is one that has been approved by a carrier and is generally free of bugs and safe. A leaked operating system likely isn’t finished but may have new features that have yet to be released by a carrier. Check out the Blackberry community for information and their thoughts on that operating system.
Step 6) Click on the link (Ex. OS 7.1.714) and click the big download when you get to the next page.
Step 7) Follow the prompts. If the download list opens up then open the first file.
Step 8) When fully downloaded the computer may require a restart for the computer to realize its there.
Step 9) Unplug your phone from the USB cable and wait till your computer is completely back from the restart.
Step 10) Plug your phone back in and open up Desktop Manager. Two things could happen to you when your phone is connected to Desktop Manager. A) You receive the update notice; follow the prompts and bam a new phone. B) Nothing at all happens, ugh oh right :S (Go to step 11)
Step 11) Welcome back, if nothing happened when you opened up Desktop Manager and your phone was fully connected you may have too many vendor files. Click the Microsoft logo and in the search tab put in vendor.xml
Your search will likely result in 1 or 2 vendor.xml files showing
Step 12) Delete the files. They are confusing your computer and Desktop Manager.
Step 13) Delete them out of the recycle bin. You may think you have vanquished the evil vendor file by deleting it once but it lives in other places.
Step 14) With everything deleted you should be prompted to upgrade your phone. There are a couple different ways to check for this if not prompted right away. Go to Device Options -> Update (Desktop Manager) or you could pull the phone from the USB and then reconnect the device.
Not all of your information may be on the phone when it has the new OS in it. This is why we Back Up the device before we start this process. Hit the Restore button and let the desktop manager return all those dirty photos your friends have sent you.
Enjoy the new operating system. Any questions put them in the comment section below.
There are lots of people in the Blackberry community who would be more then willing to help. Lots of forums that are available and RIM support sites.
Tagged: back up, BB7, BBOS, Blackberry, BlackberryOS.com, leaked, Microsoft, official, Operating system, restore, step by step, updating, USB cable, vendor files, windows 7
Thank you Mitch for the above mention:)
It’s appreciated my friend, and good blog you posted too:)
You’re so right about Step 3, how we wish more users would make it a habit of backing up their BlackBerry devices.