IPhone 4S 3G connection HELP BEST ANSWER GETS 10 POINTS?

[massiveroom234]

So recently, my IPhone 4S connection has not been working correctly. For example, I cannot search things on the internet it comes up with an error message, I cannot refresh twitter, can't use siri etc...basicly anything that's included using the internet. (Im am able to use wifi but that isn't the point). Even though I can't use the internet with 3G it still says I have signal, which I find very strange. I have tried everything such as resetting network, turning phone off and on , removing the sim, trying airplane mode and nothing has solved this issue. I am stuck. Thank you.
I have tried holding power button and home button it didn't do anything to fix it. Anything else? Thank you!

[Buzz]

hold the power and home butten at the same time 4 about a minute

[sherbsTheFerbs]

What service do you have?? This doesn't help much..

[Diana B]

Is your iPhone jailbroken? What is your total and used memory capacity? How much room is "other" taking up? These are important details.

I'd uninstall unwanted apps. Then I'd clear the Safari cookies and history under settings and do a full shutdown and restart.

[Apps Help]

First check that 3g data pack is activated there on your phone number.
Now restart your iPhone.
If it doesn't some problem then check for iOS update and make it work on latest version.
If nothing work then I'd time to visit Apple Care.

[donna r]

Do backup to icloud and then factory reset also theres a trouble shoot option in icloud app on comptwr