Tip to remove a Gmail contact list from the BB
To remove the Gmail contact list from the BB smartphone, please complete the following steps:
1. From the Home screen of the BlackBerry smartphone, click Options > Advanced Options > Service Books.
2. Highlight the @gmail.com [SYNC] service book. Press the Menu key and choose Delete.
3. Open Contacts on the BlackBerry smartphone.
4. Press the Menu key and click Options.
5. Type RSET in the Contacts options (this can be typed anywhere in the Contacts Options screen).
Note: For the BB Storm smartphone and BB Storm2 smartphone, press the Menu key to Show Keyboard.
6. The following prompt appears: Wireless synchronization for @gmail.com is not enabled. Wipe contact list anyway?
Click Yes.