Ive been using LG GT 540 for a few months now, and just decided to use 3g data to access the internet.
I think this phone was imported from Korea and was sold here, no problems, works fine.

But when I go to SETTING - WIRELESS & NETWORKS - MOBILE NETWORK SETTINGS -  ACCES POINT NAMES,

I can't add any new APN. when i press Reset to Default, there is nothing in the list, and when i press NEW APN, screen goes back to the MOBILE NETWORK SETTINGS.

Could anyone help me add the APN so I can use the 3g data?