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Discuss Officially Unlocked T-Mobile Germany iPhone - Real Life Experience at the iPhone "2G" (Rev. 1) - Hackint0sh.org; Here we go boys and girls, I can finally offer a first hand experience with ...
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    Default Officially Unlocked T-Mobile Germany iPhone - Real Life Experience

    Here we go boys and girls, I can finally offer a first hand experience with my own officially unlocked T-Mobile iPhone:

    1. unlock clearly is executed through IMEI and iTunes 7.5

    2. unlock does NOT require to be logged in into iTunes with an iTunes account (I activated my T-Mobile iPhone a couple of days ago using my german iTunes account but my US iTunes Shop account works fine too now)

    3. the unlock takes place in around 7-10 seconds

    4. if you downgrade to 1.1.1, the unlock is GONE but as soon as you connect your iPhone to iTunes 7.5 (CAUTION: lower iTunes versions DO NOT UNLOCK, V 7.5 or higher is mandatory for the unlock to work!), the 1.1.1 FW is activated, I get the "Congratulations, you device is now unlocked" message in iTunes but apparently the unlock does NOT work with FW 1.1.1, only with 1.1.2 (I get a no Service message with my Vodafone SIM and a pop up windows saying "waiting for activation") but the iPhone is activated (the "waiting for activation" message refers to carrier activation), I can access the GUI and there was no need for the *#307#... trick.

    5. after downgrading to 1.1.1, using jailbreakme.com installs the Installer which allows me to install the Oktoprep patch to be able to jailbreak 1.1.2

    6. Updating to 1.1.2 works fine too, again I get at the end of the update the message "Congratulations, your iPhone has been unlocked".

    7. Jailbreaking the 1.1.2 UNLOCKED iPhone is a piece of cake again, using the Java utility.

    8. No issues with installing and running third party apps either.

    9. Unlock STAYS when I change the SIM card, a RESET in the settings menue (no big deal) is recommended.

    Short summary: the unlock works but it is now very clear to me that there is no unlock without iTunes and especially no unlock without iTunes CONNECTED TO THE INTERNET after a firmware downgrade/update (which can be performed even without a live internet connection).

    So sorry, boys and girls but without a live internet connection and iTunes 7.5 or higher, the unlock works only with the firmware already used. If you update or downgrade the firmware, the iPhone needs to be connected to iTunes including a LIVE INTERNET CONNECTION.

    Unfortunately this also means that Apple could at ANY TIME refuse the unlock if they want to but I don't think that they're going to do that, unless somebody really pulls off a IMEI spoofing but I wouldn't recommend it since Apple isn't stupid. You need to understand how easy it is for Apple to blacklist an unlocked
    IMEI.

    As a last word: in my opinion, the unlock is actually NOT a real unlock. A real unlock should be permanent, embedded somewhere deep in the baseband.
    I don't know if the currently IMEI unlocked iPhone will automatically unlock "forever" with a possible bootloader update (Apple could update a different bootloader to IMEI unlocked iPhones) but this surely would be a better solution than the current one.

    I hope this experience clarifies some confusions and misunderstandings.
    Last edited by 997TT; 11-28-2007 at 01:14 AM.



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    Thumbs up

    Very interesting. Thanks for the info.
    Counting down for iPhone 2012 =)

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    Thanks a lot.
    Did you sniff the traffic made by iTunes? I know, it won't help much for developing an unlock, but I'm just curious what iTunes is sending..

    Cheers

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    From what I get, your iphone sync's with apple's servers and then apple's servers respond with an unlock, now is it possible to be able to monitor all commands during the unlock process being sent from apple to your computer then to your iphone and then create a server to mimic apple's servers. I know this would require quite a few unlocks before you'd be able to reverse engineer it, but it does seem to be a new alternative to using the anysim hack, especially since apple's unlock method allows hot swapping of the sim (as it apperars in in part 9).

    Lastly, if the unlock is IMEI based, then if we were able to rewrite the IMEI to one that has already been apple unlocked, we would be able to get it to unlock through itunes. Granted a load of people would have the same IMEI, but it's another option. I used to have the ability to this on some motorola's, but since stopped, do you think it can be done on an Iphone?

    Will

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    Quote Originally Posted by needlz View Post
    Thanks a lot.
    Did you sniff the traffic made by iTunes? I know, it won't help much for developing an unlock, but I'm just curious what iTunes is sending..

    Cheers
    There was no need to do that, it has been done before and as far as I remember, some sort of short 256(?) bit encrypted code is sent to the iPhone, check the "How T-Mobile unlocks the iPhone in Germany" thread, I think the sniffing was mentioned there. I also think that the DEV TEAM did the same but apparently the result was of no real value to them, so I didn't bother to repeat it.


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    I would love to see the at+xsimstate results for this unlocked state
    Search before you post

    Alienware M15x

    iPhone 3GS 32Gb

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    it sounds like the baseband is actually permanently unlocked but you need iTunes to activate after a restore because of lockdownd. I guess lockdownd just doesn't care if the baseband says "hey I'm unlocked." it needs the reactivation. If the baseband wasn't permanently unlocked there wouldn't be any way you could use another sim and I'm sure apple would do a true unlock as compared to how most of our phones are unlocked which is why I say permanent.

    The reason 1.1.1 probably didn't work is because supposedly lockdownd puts the phone in "brick mode" if the baseband firmware doesn't match the one the OS firmware came with.

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    Quote Originally Posted by mesallem View Post
    From what I get, your iphone sync's with apple's servers and then apple's servers respond with an unlock, now is it possible to be able to monitor all commands during the unlock process being sent from apple to your computer then to your iphone and then create a server to mimic apple's servers. I know this would require quite a few unlocks before you'd be able to reverse engineer it, but it does seem to be a new alternative to using the anysim hack, especially since apple's unlock method allows hot swapping of the sim (as it apperars in in part 9).

    Lastly, if the unlock is IMEI based, then if we were able to rewrite the IMEI to one that has already been apple unlocked, we would be able to get it to unlock through itunes. Granted a load of people would have the same IMEI, but it's another option. I used to have the ability to this on some motorola's, but since stopped, do you think it can be done on an Iphone?

    Will
    1/ Capture traffic sending from iPhone to iTune and from iTune to Apple server.
    2/ Replicate a simulated Apple server which only responds exactly like whatever captured in Step (1)
    3/ Overwrite the new iPhone with the same IMEI of the iPhone in Step (1)
    4/ Run the unlocking procedure in (1) with the new iPhone with iTune connected to the simulated Apple server in (2) in an isolated network setting.

    If this procedure works, then we would have a bunch of iPhone having the same IMEI !!!! Would that be a problem ?

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    Wow! Very intersting thanks!

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    Quote Originally Posted by HarryP View Post
    If this procedure works, then we would have a bunch of iPhone having the same IMEI !!!! Would that be a problem ?
    That's a VERY BIG problem! GSM operators can easily put that IMEI onto a blacklist, then all these iphones stop receiving any GSM signals. This is the way how they deal with stolen mobiles.


 

 
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