We were probably a little hasty a few weeks ago in promoting the launch of RIM’s new BlackBerry Upgrades website… probably because OS 4.5 still wasn’t available for most people. However, it’s just come to our attention that OS 4.5 download links for the BlackBerry Curve 8310 and 8320 are now available. Click the link below to download and spread the word!
Rogers OS 4.5 BlackBerry 8310/8320
(via BlackBerry News)





Just want to let any Etisalat BB users that Etisalat is offering the OS 4.5. Unfortunately, the only way of getting it is calling up the toll free number 101 and requesting for it.
Options at the link for the new firmware also include OS4.5 for the 8800 and 8820 (but not any Pearl, yet).
FYI: It’s version 4.5.0.81 of the OS.
Can this be downloaded to ATT 8310?
@Terrie,
Yes it can be sure to delete the file called Vendor.xml first, it will then become loadable on any carrier.
Thanks
Can I put the OS v4.5 for 8320 curve on T-Mobile
@nicklas and anyone with a GSM BlackBerry Curve, you can absolutely install this on your device. Do as Bla1ze says and delete the vendor.xml file and you’re good.
Where can I find the vendor.xml file
Is there any timeline on OS 4.5 for the 8300?
Terrie –
Locate the vendor.xml file and delete it. It’s located in c:\program files\common files\research in motion\apploader
Thanks Jacki
You no longer have to delete any files. If you go through the blackberry.com website and select “Software” from the navigation menu, and the choose phone software from the main screen you will be able to access the 4.5v OS from there.
umm, has anyone else tried downloading the rogers file and have it stop just before it finishes the download?
its like the 6th time im retrying to download the file and it stops at 1 minute left!!!
oh well, I will just download at&t’s 4.5os and then get rid of that vendor file
WZAv7O comment2 ,