If I unlock iPhone 4S will it cause any damage to it? Or will I be banned?

If I unlock iPhone 4S will it cause any damage to it? Or will I be banned from getting updates for iPhone 4S from apple?

I guess that depends on the method you use. The safest method is an official carrier authorized unlock. You can get it here (depending on the provider your iPhone is locked to): http://www.fastgsm.com/en/apple/apple/iphone-4s/unlock/country-network

It is completely safe i guess

It depends on the method of unlocking that you use. If you unlock it with a jailbreak unlock then this will void your warranty and mean that any iPhone repairs that you may require in the future wll not be covered by Apple. If you select an official unlock then this will not void your warranty and will also mean that any future updates released by apple will not effect your unlock.

No it won't any damages. You can easily unlock this by a gevey sim.

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