01-10-2014 12:56 AM
01-10-2014 01:03 AM
Refer to the key topic:
Try the online configurator:
Judging by your post this might be your model:
http://48months.tweakker.com/choose/Samsung/I9082%20Galaxy%20Grand
If that doesn't work then download the Tweakker APN app over wifi and run it:
https://play.google.com/store/apps/details?id=com.tweakker
Remember to enable data roaming.
Hope this helps.