Make sure that your phone is running the latest software. You can find out more about the software changes for Lumia phones from here.
- How can I check the IMEI number of my Lumia phone?
- I cannot download or update apps from Store on my Lumia. How can I resolve this issue?
- How can I prolong the battery life of my Lumia phone?
- What can I do if the camera on my Lumia phone does not work properly?
- Where are photos saved by the Lumia Selfie app on my phone?