I have recently purchased a blackberry 9930 for myself. My blackberry phone has operating system 5. I want to upgrade operating system to 6. I have searched on the internet regarding this issue but it didn’t help me anyway. I am having some problems while using it hence I want to upgrade it. I have tried blackberry desktop manager but it is not asking me for update of blackberry device software. I am not able to shift to os6. I want to know that can I use blackberry swiss army knife to load and without wiping operating system 5. Kindly help how to achieve it. I am totally confused. Any suggestions would be highly appreciated. Thank you
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