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BlackBerry® OS Smartphones

New Member
Posts: 2
Registered: ‎12-28-2011
My Device: blackberry 8520
My Carrier: o2

changing SIMS

im trying to change sims but i think there is a security feature stopping me? i have the curve 8520, and im changing from an o2 to o2 sim. the phone doesnt get passed the loading screen with that sim in but if i put my original sim in it works fine.