The Blackberry 9700 is truly a gem in itself. With a beautiful color display that shows rich and saturated colors; to its intuitive icons and menus, a battery that is built for its 3G speeds, and at a light weight 4.30 ounces; there is no denying the fact that RIM (Research In Motion) have created a behemoth of a Blackberry device.
Nevertheless, these type of smartphones are prone to OS hiccups and inconsistencies that may require you to hard reset your device.
To do a soft reset on Blackberry 9700 Bold, press press Alt + Right Shift Button + Del button together. This also works on Blackberry 9000.
To do a hard reset on BlackBerry Bold 9700, 9000: just pull out your baterry. It would be annoying to take out the battery. So the alt+shift+del reset action will be the good choice for your BlackBerry Bold.
The Blackberry Berry OS 5.0 has slightly different menus, if you want to wipe all data from the Blackberry.
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.