How to change APN settings on android?

APN is the key parameter for an internet connection over a GSM network.  When there is a problem in internet connection on an Android device by google.  there may be a need to change the APN settings on Android. Here we will guide step by step, for how to change the APN.

APN settings on Android:

1. Go to the settings.
2. G to the Mobile Networks.
3. Tap on Access Point Names.
4. If the correct APN is there, select that APN. Else tap on ADD in top rightmost.
5. Fill the app details.  Name, APN, etc.
6. Agin comes back to the main screen. See if the data signal is present on Android. If not, contact the service provider.