I have an at&t blackberry phone but my SIM card is from T-mobile when I insert the SIM it...
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I have an at&t blackberry phone but my SIM card is from T-mobile when I insert the SIM it says Invalid SIM
Phone says I have too many apps open to use camera. I closed all of them, turned phone on and off,...
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Phone says I have too many apps open to use camera. I closed all of them, turned phone on and off, added a larger Memory card. Still cannot take photos.