Microsoft Lumia 535

Microsoft Lumia 535

Windows Phone 8.1

I can't start my Microsoft Lumia 535 Windows Phone 8.1

Cause 3 of 6: Your phone is locked to Vodafone

If your phone is locked to Vodafone and you try to use a SIM from another operator, the screen will tell that your SIM is invalid.

Solution: To use a SIM from another operator, you need to get a Network Unlock Code to have your phone unlocked.

Microsoft Lumia 535