If you install an SSL certificate on Android devices then you need to go through the following steps. Please note that these steps may vary slightly depending on the Android version and device model.
1) Obtain the SSL Certificate
2) Transfer the Certificate to the Android Device
3) Open Settings on the Android Device
4) Find the Security or Certificates Section
5) Install the Certificate
6) Locate and Select the Certificate File
7) Configure Certificate Settings
😎 Set up Credential Storage Password
9) Complete the Installation
10) Verify Certificate Installation
Note:- If you are deal with SSL Certificate for a specific application then those time applications may have their own certification installation procedure.
If you are not getting proper results please I will refer to this blog. https://www.ssl2buy.com/wiki/ssl-configurations-installations