The BB5 OS on the BlackBerry Bold 9700 has slightly different menus when you want to erase all the data off the device. Here’s where you can find it.
1. From the home screen, press the Menu button.
2. Select Options.
3. Select Security Options.
4. Select Security Wipe.
5. Check the items you wish to wipe.
6. Type blackberry in the box.
7. Select Wipe.