P910 Update service Voda Phone (Important)

Posted by razaqad
I have a p910 from voda . I live in a country where voda does not operate. And i purchased this p910 from a friend who brought it from some other country where voda operates.

Currently The only thing about voda in this phone is the startup and shut down animation. Except for that there is nothing related to voda in this phone. And i can use it with any network.

My questions:
1) Is my phone normal or unlocked. I mean , does every vodaphone operates like this or only voda network can be used with a voda handset.

2) If my phone is unlocked, if i rest my phone to factory settings , would i have to unlock it again?

3) if i update my phone (update firmware) through se update service , would my phone get locked again ?

4) if i update my phone , what would happen to voda thing ??