Will restoring my unlocked iPhone from backup reset my iPhone back to being a locked iPhone?

Will restoring my unlocked iPhone from backup reset my iPhone back to being a locked iPhone?

Yup, just like new.

Did you unlock it using jailbreak software? If so, then it goes back to being locked to the original network.

Depends.

If you software unlocked your phone via a jailbreak available tool, then yes.
If it was unlocked either from your carrier, the start or some 3rd party unlock service, then no it wouldn't.

  • Restoring iPhone from backup? I got a new iPhone yesterday and there has been some confusion and I lost everything. I backed up my old iPhone in July and I was wondering if I can plugged my new phone to get that backup. I'm just scared because once you plug your phone in it backs up that phone. & I've been using my new iphone and it already has like apps and stuff on it. How can I get the back up data onto my new phone? Does it give me the option when I plug my phone in?
  • Restoring from backup on a iphone? I have purchased a iphone 4 and i want to put all my stuff from my itunes to the 4. I backed up all my stuff this morning and i have gone to restore from backup and i have done it but the screen on itunes is still there and will not go and none of my music or apps or anything are on my new phone.
  • Restoring from backup after iPhone reset because of a bug? If I have a bug in my iPhone and I want to reset it, and I backup first in iTunes on PC, will the bug return when I restore from backup?
  • If I update my software on my iPhone, will it go back to being locked? About a year ago now, I got my boyfriends old phone - which at the time was locked to o2. I got the phone unlocked as my sim card is Orange. The man said that I had to keep it on the oldest software update, and if I updated it, the iPhone would go back to being locked to o2. HOWEVER, I accidentally deleted some of my apps, which now to get back requires the new software. Does anyone know IF I update it, will it ACTUALLY go back to being locked to o2?