Yes, just go in the network settings and turn off Enable 3G.
The only way is to buy a white coloured case.
turn it off and try again, or restore it from itunes
to look tidy
you can't
Apple, Bestbuy And Other Major Retail Stores Do Not Carry The Iphone 3G , they only carry Iphone 3GS , Iphone 4 , and Iphone4S. To Buy A 3G You will have to buy one off craigslist or Amazon
iPhone 3G S = iPhone 3G + Extra's
because 2g is on
I have an iPhone 4. i turn the wifi off if i dont need it and use 3G instead, or the other way. and sometimes turn the brightness off. Dont play so much 3D games (Sims) Hope it helped :)
Go to settings, sounds, and then turn it on vibrate.
The iphone 3g is the third generation iphone , is that what you are asking
When you switch off the 3G and cellular data in your iPhone 5 you get no service signal because of the poor signal provider.