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There is a small chance you have no enabled 3G. To do this follow these steps. Go to Settings > General > Network and Enable 3G should be set to on. Also your area may not have 3G capabilities. In this case there is no 3G signal for 3G to work. To check 3G coverage contact your provider. Also if your iPhone is a 1st Generation and not the iPhone 3G you do not have 3G capabilities.
What else can I help you with?
Does Angry Birds space work on iPhone 3g?
I have a 3G iphone with ios 4 and it didn't work on it
Does iPhone work in Japan?
Yes. if its Iphone 3G, then you should be supported by Softbank or Docomo 3G Iphone 2, dont work..
If you unlock an iphone 3g will the 3g function still work?
yes
Will the iPhone 3G work without the 3g network?
yes, but you have to have swag also.
Can you put an iPhone 3g case on an iPhone 2g?
it just wont work
Can you put an iPhone 2g case on an iPhone 3g?
it just wont work
Does nike plus work with the iPhone 3g?
yeah
Will an iphone 4 work when not in an 3G network?
If you have wifi
Which is better the iPhone 3G or the iGhone 3GS?
iPhone 3G S = iPhone 3G + Extra's
How To Enable Multitasking On iPhone 3G?
Multitasking does not work on a iPhone 3G, You must Jailbreak your Phone to do that (Beaware that your phone would be very slow with Multitasking)
What make is the iPhone 3G?
The iphone 3g is the third generation iphone , is that what you are asking
Why does iphone 3g dont have front camera?
Because the iPhone 3G was a old original iPhone that didn't have alot of things like voice control and video taking .the 3GS doesnt a front camera ethier it was envenomed when they made the 4/4s
