iPhone Factory Unlocked iPhone 3GS

[justein]

I have many questions about this unlocking process of factory unlocking an iPhone 3GS. First, if I upgrade from 4.3.2 to 5.1.1 while preserving baseband, will the phone still factory unlock? Second, if I downgrade (while preserving baseband or while not preserving baseband) would it still be factory unlocked? Thanks so much to anyone who answers!

 

[dhlizard]

If the phone is IMEI unlocked, firmware and baseband is now irrelevant.
It will always stay unlocked.

 

[gngan]

I have many questions about this unlocking process of factory unlocking an iPhone 3GS. First, if I upgrade from 4.3.2 to 5.1.1 while preserving baseband, will the phone still factory unlock? Second, if I downgrade (while preserving baseband or while not preserving baseband) would it still be factory unlocked? Thanks so much to anyone who answers!

Preserving baseband is for software unlock or hardware unlock. Wouldn't it be pointless if a factory unlock phone needs to an unofficial software from third parties to preserve the baseband? You are thinking too much.

 

[justein]

Response

Yes, but what about downgrade, which isn't supported by Apple? Will it still work?

 

[dhlizard]

Once IMEI unlocked, it was remain unlocked.
No other way to say it.

Now you can "what if" forever, the answer remains the same.

 

[justein]

Reply

Once IMEI unlocked, it was remain unlocked.
No other way to say it.

Now you can "what if" forever, the answer remains the same.

OK. I will test this on an iPhone 3GS that I have that is factory unlocked.

 

[justein]

It worked!!!

Downgraded to iOS 4.1, and my factory unlocked was kept! No baseband preserved!

 

[NicoleRichie]

Well I'm sorry to hear this. There is no such thing as a "factory unlocked" phone, as the factory doesn't unlock them. They are unlocked via iTunes after the official carrier releases information to Apple.

ALL phones sold in the US are carrier locked to AT&T and they DO NOT UNLOCK PHONES, for any reason whatsoever.

This support article will provide you with the list of official carriers and which ones offer unlocking services for phones.

OS 4 has not been released so who really knows what you have and what has been done to it. I suggest that you do what you can to sell the phone and purchase one sold either in your country or one of the officially unlocked countries. On a side note however, warranty service on the iPhone is locked to the country that it is sold in, so you would have to return to the country the phone came from for warranty service, and they will not ship the phones outside of their countries as well.

Hope it works out for you.

http://osxdaily.com/2012/04/21/unlock-iphone-att-web-technical-support/

 

[Trauma1]

ALL phones sold in the US are carrier locked to AT&T and they DO NOT UNLOCK PHONES, for any reason whatsoever.

False, on both counts.

There are phones sold in the US without any carrier locks, and AT&T will unlock out-of-contract phones.

 

[gngan]

Well I'm sorry to hear this. There is no such thing as a "factory unlocked" phone, as the factory doesn't unlock them. They are unlocked via iTunes after the official carrier releases information to Apple.

You are wrong. There are phones that do NOT require 'official carrier releases information to Apple' in order to unlock it. I paid full price for my 3G/3GS/4S and it's unlocked. In fact, there's NO locked phone in Hong Kong.

ALL phones sold in the US are carrier locked to AT&T and they DO NOT UNLOCK PHONES, for any reason whatsoever.

US have been selling factory unlock phone last year. AT&T USED to not unlock phones but their policy have changed and they WILL unlock it.

It's nice to try and help but you are not helping. You are giving out wrong information. Newbies' need to learn more before giving out advise.

 

[Xenomorph]

Well I'm sorry to hear this. There is no such thing as a "factory unlocked" phone, as the factory doesn't unlock them. They are unlocked via iTunes after the official carrier releases information to Apple.

ALL phones sold in the US are carrier locked to AT&T and they DO NOT UNLOCK PHONES, for any reason whatsoever.

This support article will provide you with the list of official carriers and which ones offer unlocking services for phones.

OS 4 has not been released so who really knows what you have and what has been done to it. I suggest that you do what you can to sell the phone and purchase one sold either in your country or one of the officially unlocked countries. On a side note however, warranty service on the iPhone is locked to the country that it is sold in, so you would have to return to the country the phone came from for warranty service, and they will not ship the phones outside of their countries as well.

Hope it works out for you.

What the hell are you smoking? Is this some copy and paste from 2009???

- Unlocked iPhones can be purchased in the U.S. without belonging to any "carrier", so unlock information does not need to come from the carrier.

- All phones sold in the U.S. are not carrier locked to AT&T.

- All iPhones sold in the U.S. are not carrier locked to AT&T.

- AT&T can unlock any iPhone locked to them at any time, and have already unlocked many iPhones at customers' requests (including my 3GS!).

- iOS4 came out in 2010.