If you are using android 4.0 or + device please search & download Sim App PRO
**If you knows new methods, please send us....
This app most useful for Sri Lankan users. You can operate your sim card using this application. (Check balance, quick recharge, active data packages etc)
You can configure your APN setting (3g/MMS settings) using this application.
Features in this app;
Sim card operator
Internet/MMS/ APN configuration for all android phones
Secret codes
If you know extra method you can submit it to us