10-06-2011 10:00:30 AM - edited 10-06-2011 10:04:17 AM
Not sure you can. *#*#4636#*#* is how you usually do it. Go under phone info. May give you the option there to choose GSM only.
my husband has a lg thrill... how do you turn the 3g off?
11-28-2012 11:41:51 AM
sorry for the silly ?
What is diferent between 3G and 4G
and GSM and not GSM /I know u could use GSM in UEurope and Mexico/
GSM (considered 2G or 2nd generation cell network technology) is for voice calls and EDGE data. EDGE is slow, not much faster than dial-up. GSM is pretty standardized, and bands on a phone bought in the US will often work in foreign countries, as you mention.
3G (HSPA on AT&T) is much faster than EDGE, up to 10 Mbps (although 3-6 Mbps is probably more average). 4G is kind of a misleading term. AT&T calls their HSPA+ network "4G", and its really just an enhanced version of their 3G network, in fact using the same phones as 3G.
AT&T is also now deploying 4G LTE, which employs a new data network, and requires your phone to be LTE compatible. You can see speeds up to 30 Mbps (sometimes even higher) on LTE.