QUESTIONS AND ANSWER ABOUT BLACKBERRY SMARTPHONE SOFTWARE UPGRADE "OS 5 AND OS6

If you got an unlocked/unbranded Blackberry
Curve 3G 9300, which comes with OS5
and you want to upgrade it to OS6.
all you have to do is to downloaded Blackberry Desktop Manager,
ignore any info telling that there's no software update
available or that
this is due to being in a
restricted region and neither App World, nor
Software Updates are available.
Contacted your Service Provider, after clicking on this link to OS6 directly
designed for them. (Vodafone Egypt)
https://swdownloads.blackberry.com/
Downloads/entry.do?
code=69CB3EA317A32C4E6143E665FDB20B1

There is a direct link for exactly the same
version that is unbranded for my phone (a
Generic Version)
PS: Cannot obtain through Blackberry
Desktop Manager.

The most recent officially released OS for the
9300 model is 6.0.0.431
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. 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
There is no "unbranded" software. ALL
BlackBerrys are branded to some vendor,
whether it is stamped on the device face or
backplate.
See the link below, for the download and
simple installation instructions.
https://www.blackberry.com/Downloads/
entry.do?
code=02A32AD2669E6FE298E607FE7CC0E1A
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."
3. Plug in BB and double click on
"Loader.exe." It's located in the same place as
the above vendor.xml file.