For 2 days my phone would not connect to the internet even though my mobile data was activated. The 3g or g logo wasn't even showing. I called orange and samsung and after trying everything they suggested they both ended up suggesting i factory reset my phone. DONT RESET YOUR PHONE!!!! THERE IS NO NEED. This is what you have to do so you can get back your data network:- Step 1 - go to settings. Step 2 - go to wireles and networks. Step 3 - go to mobile networks Step 4 - go to acces point names Step 5 - press the options button (bottom left of the phone) Step 6 - select reset to default. Step 7 - should show a list of names choose the one that contains the word internet. Step 8 - turn off your phone Step 9 - turn it back on If you have followed those steps you should have your network connectivity back. This took me less than 5 minutes to do and has saved me a lot of time, stress and money. Hope you found this helpful Enjoy your galaxy s!!!