How to del all entries in Calendar or Address book of blackberry bold 9000

If u want to do it on phone set then

For Calendar: go into the calendar > menu > options type RSET

For Address Book: go into the address book > menu > options type RSET

 

You can also do it by connecting ur phone to desktop manager on pc. In desktop manager, goto backup/restore > advance > clear entries of calendar or address book or any other type of data you want.

Reference: http://forums.crackberry.com/f2/can-i-delete-whole-calendar-once-14970/

-urShadow