my new nokia lumia 925 has locked itself. This morning I tried to use my phone and it is asking for my password! I haven't even set a password yet! Is there a default password on these phones? I can receive calls but that's all. Please help
No there default password. Could someone else have set it? Did you buy it from someone?
The only way to access the phone if you can't figure it out is doing a hard reset.
(I'm assuming you're not taking about the Microsoft account but the lockscreen pin)