12-21-2011, 11:02 AM
Join Date: Dec 2011
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Hi, i own a blackberry 9520, it was from O2 so it should be unlocked.
I have tested the handset with Vodafone and Giffgaff sim cards and it works no problem at all. When i try use an Orange sim card i get the message 'Your current sim card requires an unlock code would you like to unlock it'.
I am clueless to why this is appearing because it seems to work with most other networks. Can someone please advise me whats causing this and hopefully a fix to the problem.