HOW TO UPDATE YOUR BLACKBERRY FIRMWARE MANUALLY {VERY EASY}

1. Visit Here, Choose the correct
Network Carrier on your Blackberry &
also choose the Correct Model, > Click
the Next Button
2. Now Click on the Download Link
on their Site, Run and Install the newly
downloaded program.
3. Do not mark the option to open
Desktop Manager when finalizing the
installation.
4. After Installation, Go to My
Computer > Open this Path C: >
Program Files/Common Files/
Research In Motion/AppLoader
and Locate & delete the File
Vendor.xml
5. Connect BlackBerry to PC via USB
6. Now Open the Desktop Manager
You should be prompted for the
update at this point. (If not, select
“Update” in desktop manager) and
you’ll get the prompt for the update.
When presented with the menu in the
shot below, select “View other
Versions”, and pick the appropriate
firmware version installed on your PC
(local installation).
Follow the OnScreen Step from there
& your Device Firmware will be
Successfully Updated.
Precaution:- Please backup your
Blackberry device using the Desktop
Manager before trying to Update your
Phone Firmware.