Curve 8520 software update and unlocking.

[Edrill]

I think there should be an option in the Options menu under SMS. Not sure about the Curve though. Also, do a battery pull after the firmware upgrade.

 

[Mohit]

Looks like I am not the only one suffering from the sound problem and the profiles menu being buggy. Loads of people are suffering from this after the update.

8520 Sound profile problem after 5.0.0.822 - BlackBerry Support Community Forums

I would not recommend anybody to update their phones right now to this version of the OS. It has a few more bugs.

 

[Edrill]

Why not try one of the hybrids?