Head over to the MetaTrader application on your Android device, and tap on the 3 horizontal lines on the top left hand side of the app followed by About.
Tap and hold the MetaTrader logo until your device vibrates on the next screen.
When ready, tap on the 3 horizontal lines again and select Manage Accounts;
Select Login to an existing account;
Type in 'Prosperity' as a server and select Prosperity-Live;