I cant issue in my Nokia N70 Phones 3G in 3G enable area.But in this area my Friend issue 3g in his Samsung handset.
i go to settings > network > network mode > Change GSM to Dual Mode. after phone automaticly restart.
after network is not indicated 3G lower tower bar.
indicated GSM Simble.
i am doing Restore, Format,need new Settings.
after that i cant solve.