Is unlocking an iphone 4s safe?

I want to use an Unlimited plane from another phone serves so i was thinking about unlocking an iphone 4s but is it safe, does it affect the phone in anyway?

No it won't harm it, hell it even increases the value of it when reselling.

It is safe Just gives you more choices and thing to do with it.
http://attiphoneunlocker.com/
http://unlockiphone-4s.net/

This is the first and most critical step if you want to unlock iPhone 4S safely. It is not the lack of options that make it a challenge though.

Yes it is safe to unlock it from the provider.

Try unlckr, it works like a charm.

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