On Android device, how to install Root - Intermediate Root CA Certificates ?

Please follow the below steps.

Android 11+ Device

In Android 11+, to install a CA certificate, users need to manually:

1. Open Device settings
2. Go to ‘Security’
3. Go to ‘Encryption & Credentials’
4. Go to ‘Install from storage’ or ‘Install a certificate’ (depending on devices)
5. Select ‘CA Certificate’ from the list of types available
6. Accept a warning alert.
7. Browse to the certificate file on the device and open it
8. Confirm the certificate installation

Samsung Device:

Settings:

• Biometrics and security
• Other security settings
• Install from device storage
• CA Certificate
• Install Anyway