You can update your BB to 6.15 and also unlock/jailbreak. But you stand the chance of loosing your GPS on BB 6.15.arghya139 said:iPhone 3G
some people saying bb cant be unlocked
is it ?
Q: My caller ID is not working and my SMS threads are fragmented, why?
A: The "unlock" causes the phone to use 001 as the default MNC, which has no matching country code and your phone fails to map caller ID to your country. There are many ways to get around it, e.g. manually adding the country code to every number in contacts, adding custom carrier bundles for 001/01 or a network reset/full reset. A more consistent method is to open /System/Library/Frameworks/UIKit.framework/PhoneFormats/UIMobileCountryCodes.plist and add the highlighted part:
Replace %Your Country Code% with ISO3611 alpha-2 country code for your locale: nz for New Zealand, jp for Japan etc.