Learn how to use the trusted credentials on your Samsung Galaxy S4. If a certificate authority (CA) certificate gets compromised or for some other reason you do not trust it, you can disable or remove it.
- From the Home screen, tap Apps > Settings > More tab > Security.
- Tap Trusted credentials.
- 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.
- Tap a CA certificate to examine its details. A scrolling screen displays the details.
- Scroll to the bottom of the details screen and tap Disable to disable a System certificate or Remove to remove a User certificate.
Note: When you disable a system CA certificate, the Disable button changes to Enable, so you can enable the certificate again, if necessary. When you remove a user-installed CA certificate, it is permanently deleted and must be re-installed, if needed.
- Tap OK to return to the certificate list.
- When enabled, a check mark appears in the check box.
Install from device storage on Samsung Galaxy S4
- Install encrypted certificates from an installed memory card.
Note: You must have installed a memory card containing encrypted certificates to use this feature.
- From the Home screen, tap Apps > Settings > More tab > Security.
- Tap Install from device storage, then choose a certificate and follow the prompts to install.
Clear credentials on Samsung Galaxy S4
Clear stored credentials.
Note: This setting only appears if you have installed encrypted certificates.
- From the Home screen, tap Apps > Settings > More tab > Security.
- Tap Clear credentials to remove all certificates.
