After you have registered in your account, you can proceed to setting up the application.
1. Install the application Shadowsocks, download the application here
or install via Google Play:
2. Configure the application.
We go in the personal account from the phone.
In the Account tab, select the server and click on the QR code:

in the opened window, click on the QR code again, and add the configuration to the application by pressing "YES".

I advise you to select each server and add it to the application in the same way.
3. Run the application
Select the server and start clicking on the button with the airplane:

All is ready.