This post is for all you T-Mobile 8320 users out there that have been hesitant in updating your device using another carriers OS. T-Mobile has posted their official 4.5 OS for the 8320 Curve, after the upgrade you will be rocking the official And of course, if you are unsure of how to upgrade your OS, we got you covered check out our BlackBerry 101: How to Install or Upgrade to a New RIM BlackBerry Operating System (OS).

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