i have a 530 on denim ,the mobile data has stopped working.

[Windows Central Question]

Only works on wi-fi now.Doesnt show a 2 or 3g on the main screen now.On mobile+sim settings the highest connection speed 3g is grayed out.

 

[Chintan Gohel]

can you try to restart the phone and check?
Remove the SIM and then put it back and check?
Get a replacement SIM card

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[temagad]

Turn Airplane mode ON then OFF and try to restart.