Hi there @saifdream Can you try turning your airplane mode ON and OFF again and see if that helps . Please can you also try to perform a Manual Roam,which basically is searching for Networks on your device. Go to your phones "settings" and Select mobile network options,and Change the Network Selection Mode from Automatic to Manual ,and list of available networks will be displayed after a few moments. ( please be a little patient as the available networks appear ). Once the available networks appear, Select any other network that is not your home provider network and After a few moments you will see "No Service" on the display.Now select your home provider ( which is O2/giffgaff network ,and change the selection back to Automatic,and see if that helps.