BlackBerry Bold phones have so many features that it’s tough for us to keep to up to date with everything. We were able to find out how to unlock BlackBerry Bold 9790 as well as all other BlackBerry Bold models such as the 9000, 9700, 9780, 9900 and whatever other Bold models are out there.
The way that you SIM unlock your Bold is simply by getting two things. The first is a SIM card from a different network than your phone is from which you probably have access to from a friend, family member or colleague. The next thing that you need is a SIM unlock code. These are purchased from cell phone unlocking companies. The one that I have used is Cellfservices. I tried a few others but got scammed, so now this is the only company that I use.
After, you just enter in the unlock code into your phone and you will be good to go to use any SIM cards in your phone!