- Restart your phone.
- Check that your SIM card is fully inserted. Do not use SIM cards that have been modified to fit the SIM slot.
- Your phone may be SIM locked, which prohibits using a SIM card from a different network operator.
- If possible, try your SIM card in another phone.
- I am not receiving audio when playing music or games on my Lumia phone
- My Lumia's battery does not get fully charged
- What can I do if the camera on my Lumia phone does not work properly?
- I cannot send or receive text messages on my Lumia phone
- Why do the date and time get reset by themselves in my Lumia 625 or 1320 phone?