how to change pin number on BlackBerry Curve 8900. for security reason, you should change the SIM card PIN number, when you got new BlackBerry Curve 8900. when enabling SIM security requires the PIN code be entered every time the BlackBerry 8900 is turned on. This security follows the SIM if it is moved to another phone. you can change pin number as follows on BlackBerry Curve 8900: from Home screen, press the Menu key > s elect Settings >  Options >  Advanced Options >  SIM Card >  Press the Menu key > Enable Security >  Enter the PIN code ( The default code is 1234 ) >  Press the trackball >  Press the Menu key > Change PIN Code > Enter the old PIN code >  Enter the new PIN code >   Enter the new PIN code again >  Press the trackbal

Tags: BlackBerry Curve 8900, change pin code, change pin number