![Credential Storage](/images/backgrounds/2331/2331285x1.webp)
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![Trusted Credentials](/images/backgrounds/2331/2331285xi2.webp)
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![Turn off](/images/backgrounds/2331/2331285xi5.webp)
2.Touch Install from device storage, then choose a certificate and follow the prompts to install.
Clear CredentialsClear stored credentials.
Note: This setting only appears if you have installed encrypted certificates.
1.Touch![Install from Device Storage](/images/backgrounds/2331/2331285xi6.webp)
2.Touch Clear credentials to remove all certificates.
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