Ok so I want to download facebook for my blackberry 8520. So I tried it and It said I can't because I have 0S6 and I need to upgrade it. Now first of all I have no idea what OS is and secondly I need to know how to upgrade it! How do I go about doing so?! I'm a little blonde when it comes to these things, so pls keep it sweet and simple. Thanx!
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