How can i change my gflex2 from at&t to trac phone. Im having trouble unlocking the APN

SOURCE: i need the gprs settings for net10 network..apn,

throw it away, dont keep adding money to a service you cant access,i have the same problem with my new net 10 motorola em326g phone for about a month and they keep giving me these meaningless ticket numbers and useless program codes, and they all ways tell me the same line of jive dont waste your time and money like i did.

SOURCE: Need help unlocking new G2

that G2 of yours, works on 850 MHz;900 MHz;1800 MHz;1900 MHz;UMTS: Band IV . So if the unlock was successful and the network you are trying to register it to operates over the G2's frequencies, then it should register. confirm with the provider you are subscribed to. post back for followup

SOURCE: change apn setting nokia 6350

Please refer all the APN settings from the link provided below :

http://broadbandforum.in/bsnl-3g/64177-apn-settings-for-all-network/

SOURCE: apn settings

I have a S4, not sure if its the same but here's what i do to get to APN settings:
First go to settings and tap on the connections tab at the top of the screen. Then tap on "More networks" under the "network connections" subsection. Once there you should see a button for "mobile networks". tap on it and it should bring you to another screen with a button called "Access Point Names (AKA APN). Tap on that and you're there!
Like I said, this is for a Galaxy S4 but I think it would be a similar if not identical procedure for the S3. Hope this helps :)