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 recover/reset/restore my phone software?
- I cannot send or receive email
- My phone does not recognise my SIM card
- My phone does not charge
- Where can I find information about WhatsApp, Skype, Angry Birds, Twitter, NimBuzz, Viber, Fring, or some other non-Microsoft application (3rd party application)?