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Old 06-08-2012, 04:39 AM   #1
cmr
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Join Date: Jun 2012
Model: 9900
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Carrier: tele2 comviq
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Default Downgrade from os 7.1 to os 7 blackberry 9900???

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Hi!

how do i downgrade my bb9900 from os 7.1 to 7.0. I bought a 3500mh battery and it doesnt work with the latest OS. My BB is unlocked and my carrirer is Tele2 comviq (its a Swedish carrier).
I tried to downgrade the OS from the phonemeny but i dont have the "downgrade" button in "options, device".

Need help plz!
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Old 06-08-2012, 12:45 PM   #2
cmr
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Join Date: Jun 2012
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Carrier: tele2 comviq
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Default Re: Downgrade from os 7.1 to os 7 blackberry 9900???

If i restore my bb9900 from before it was upgraded , shouldnt that work?
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