This applies to the following:

• BlackBerry Desktop Software
• BlackBerry device
• BES

Procedure

To remove and re-add service books while your BlackBerry device is connected to your personal computer, complete the following steps:

1. In BlackBerry Desktop Manager, open Backup and Restore and click Advanced.
2. From the Device Databases list, select Service Book and click Clear.
3. When the warning appears, click OK and close the Backup and Restore window.
4. Disconnect your BlackBerry device and perform a hard reset. If you don't know the hard reset keys, remove battery and then re-insert.
5. When your BlackBerry device has been reset, reconnect your BlackBerry device to your personal computer.
6. In BlackBerry Desktop Manager, open Redirector Settings and click the Security tab.
7. Select the Generate keys manually check box and move your mouse randomly to generate a new encryption key.The service books are pushed to your BlackBerry device.
8. When this is complete, click Apply on the Redirector Settings window.
9. When the Status field shows Up to date, generate two more keys manually. Make sure to click Apply after you generate each key.When the warning appears stating that a key has been created in the last 24 hours, click YES.
10. When this is complete, select the Generate keys automatically check box and click OK.
11. Disconnect your BlackBerry device and send a test message to yourself from your BlackBerry Device.

To remove and re-add service books while your BlackBerry device is not connected to your personal computer, complete the following steps:
Note: The BlackBerry device user must be on a BlackBerry Enterprise Server in order to perform this wirelessly.

1. On your BlackBerry device Home screen, click Options.
2. Select Service Book.Depending on the BlackBerry Device Software version running on your BlackBerry device, you may need to select Advanced Options, then Service Book.
3. Select the BlackBerry [SYNC] service book, click the trackwheel, and select Delete.Depending on the BlackBerry Device Software version running on your BlackBerry device, you may need to select the Desktop [SYNC] service book.
4. Request a wireless enterprise activation password from your system administrator.
5. On your BlackBerry device Home screen, click Options.
6. Click the trackwheel and select Enterprise Activate.
7. Type your email address and the password provided by your system administrator.
8. When the enterprise activation is complete, send a test message to yourself from your BlackBerry device.

Thanx BBTheme

thanks...

great Post!!!