First check your router, and second of all, you must set up your wireless options.
and like what umit said you need to check your APN settings, if none of that helped, it might be damaged and you’ll need to replace your wireless.
See if your phone connected to the wifi and if it’s still has no internet connection, it might be the router.
You need to provide more information about you problem so I can better assist you. First of all how are you trying to connect to the internet? By wifi or your mobile service provider? If it is by wifi then you have to check to ensure that your router is properly configured and if it is by your mobile service provider’s network then you have to make sure you have the correct APN settings.
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