[flirtaciousboi]

I had previously updated to the OS 4.5.0.81 from Australia and now T-Mobile released theirs. I was wondering how I update to the T-Mobile's version because it won't recognize there's a new update since it's the same OS number.

[pltaylor]

There is no need to it's the same thing.

[wnm]

I had the same situation. Before I did the update, I uninstalled from windows all previous OS versions and then installed TMO's OS 4.5. It recognized the update and installed the Core application.

[TryMyMartini]

yeah, you can go to C:\Program Files\Common Files\Research In Motion\AppLoader and run the exe file there that's an apploader wizard. Somewhere along the way under options you can ask it to delete all app files and then it will reinstall the version you downloaded.

[flirtaciousboi]

I had the same situation. Before I did the update, I uninstalled from windows all previous OS versions and then installed TMO's OS 4.5. It recognized the update and installed the Core application.

How did you uninstall the previous OS version?

[wnm]

How did you uninstall the previous OS version?

I did not remove the OS from my BB, I uninstalled it from windows using add/remove programs in control panel.

[exelant]

Here's the passage from the 101 Upgrade guide that addresses this issue, good luck:

If you're installing an operating system that's older than your current software, you'll want to download the OS to your PC and launch the .exe file just as described above.* But when you plug your device into your PC after opening the Desktop Manager, the app won't find any updates and you'll have to instigate the install process yourself. To do so, click the Application Loader icon on the Desktop Manager home screen and then click the Start box on the right side of the screen, beneath Update Applications. The software will then search for updates and won't be able to find any.* On the following screen, click the Advanced tab under Device Application Selection, make sure the list of applications on the next screen includes all programs you wish to include in the install and hit Next again. Choose to backup your application data on the following screen and hit Finish to begin the install. You'll know your new OS is installed successfully when the Desktop Manager's Update Complete screen appears and your device's radio turns back on.* Shortly after the process finishes up, you should receive a message in you inbox to let you know your device is registered with your carrier's network. If you don't receive such a message, resend your device's e-mail service books.* You can send service books in two ways, using either your BlackBerry itself or your carrier's BlackBerry Internet Service (BIS) page.* To send service books via BlackBerry, open your E-Mail Settings/Set-Up Internet E-mail icon, log in if prompted, and click Service Books option under the Settings heading. On the following page, send the books by hitting Service Books again

Posted from my CrackBerry at wapforums.crackberry.com