hard reset and soft reset for BlackBerry Bold 9700, 9000 are the same as other BlackBerry device. To do a soft reset on BlackBerry Bold 9700, 9000: just press Alt + Right Shift Button + Del button together.
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. if soft reset can not work on your BlackBerry Bold, you had better upgrade your BB firmwar. it will work again.