Hi everyone...In order to disable the service provider internet temporarily on your Samsung Galaxy S & for using Wifi only , you need to do the following :
Goto SETTINGS > WIRELESS & NETWORK > MOBILE NETWORKS > ACCESS POINT NAMES
Once you are there inside " ACCESS POINT NAMES " & if you see that there are more than 2 fields , for e.g APN(mms) , APN(Internet) , delete the APN for internet & let the APN(mms) stay at its place.Once you are done with it , no more worries to lose your prepaid money.The 3G / G sign will automatically disappears from the top just besides the battery bar.If you want to restore the APN (Internet) again , you can follow this path :
Goto SETTING > WIRELESS & NETWORKS > MOBILE NETWORKS > ACCESS POINT NAMES
Once you are in the " ACCESS POINT NAMES " field , click the left navigation tab on your mobile & then click " NEW APN " & start entering the values for the following fields : ( I am using optus so the values to be entered by you might could differ from mine since you might could be with some other service provider like Vodafone etc , anyways its a good idea to note down the by default values & then to proceed to delete them or to delete the entire APN-Internet )
NAME = NONE ( Optus internet ; by default )
APN = NONE ( yesinternet ; by default)
MCC = NONE (505 ; by default)
MNC = NONE (02 ; by default)
AUTHENTICATION TYPE = NONE (PAP ; by default)
Enjoy folks !
