Credential Storage, Trusted Credentials, 1.Touch Settings ➔ Security, Turn off

If a certificate authority (CA) certificate gets compromised or for some other reason you do not trust it, you can disable or remove it.

1.Touch Settings ➔ Security.

The trusted credentials screen has two tabs:

•System: Displays CA certificates that are permanently installed in the ROM of your device.

•User: Displays any CA certificates that you installed, for example, in the process of installing a client certificate.

3.Touch a CA certificate to examine its details. A scrolling screen displays the details.

4.Scroll to the bottom of the details screen and touch Turn off to disable a System certificate.

Caution! When you disable a system CA certificate, the Turn off button changes to Turn on, so you can enable the certificate again, if necessary.

5.Touch OK to return to the certificate list.

When enabled, a check mark appears in the check box.

Install encrypted certificates from an installed memory card.

Note: You must have installed a memory card containing encrypted certificates to use this feature.

1.Touch Settings ➔ Security.

2.Touch Install from device storage, then choose a certificate and follow the prompts to install.

Clear stored credentials.

Note: This setting only appears if you have installed encrypted certificates.

1.Touch Settings ➔ Security.

2.Touch Clear credentials to remove all certificates.