Verify airplane mode is turned off.Perform a soft reset.Locate Message centre. Directly beneath it should be the message centre phone number of your network operator. (Check your network operator's website for their message centre number to compare)....
Power off your device completely, then power it back onMake sure you have a network connection (if you have No Service click here)Go to Settings > Mobile data and make sure Mobile data is ON and there is no data blockGo to Settings > More > Mobile ne...
Following are the method with which sim error will be fixed:Disassemble(loose) the Nokia 530.Clean the panel off dust.Check the simcard jack.Read the simcard jack to the panel.If is ok and power the phone it still shows insert sim, sim missing,sim er...
For proper apn setting in bold 9900 check Blackberry Bold 9900 Manual. And some reasons and solutions behind the error in data are;Power off your device completely, then power it back onMake sure you have a network connectionGo to Settings > Networks...
A simple reboot may fix this issue easily, if not then ask Blackberry Support Community for help or check Blackberry Q5 Manual and practice fixes given in it.