iPhone 1st Generation unlocked?

Discussion in 'iPhone' started by ric275, Dec 9, 2011.

  1. ric275 macrumors member

    ric275

    Joined:
    Dec 4, 2011
    Location:
    Surrey, UK
    #1
    Hey all, I recently bought an iPhone 1st Gen off of ebay and found out it had AT&T on the front picture on the box as the carrier. I assumed that it's a US phone. I knew the phone had been unlocked so this didnt bother me. However when I turned it on it was running iPhone OS 1.4.1 with what looked like a jailbreak. Then I found the seller had an included an Orange SIM in the phone which wasn't working. I have many iPhones and this is just for the collection, not as a phone. So I decided to restore and update it to iPhone OS 3.1.3 and undo the jailbreak and unlock so it was 'pure' again. However after the restore and update, I decided just for fun to try a O2 SIM in it. To my amazment it worked! And I can use it as a phone. Can someone tell me what has happened here? Was it unlocked professionally or something? Did 3.1.3 unlock it? Or did all iPhone 1st Gen's have AT&T on the box? (But it did come with a US charger). So now I have an unlocked(?) iPhone 1st Gen running smoothly on 3.1.3. Overall I am pleased but I would like to know what went on about unlocking!
    -Thanks :) :apple:
     
  2. reclusive46 macrumors 65816

    reclusive46

    Joined:
    Apr 14, 2011
    Location:
    Canada
    #2
    Maybe Apple just allowed any 1st gen to run on any other offical iPhone carrier. As there were not many.
     
  3. tardman91, Dec 9, 2011
    Last edited: Dec 9, 2011

    tardman91 macrumors 6502a

    tardman91

    Joined:
    Oct 21, 2009
    Location:
    Tampa Area, FL
    #3
    Back when I followed the jailbreaking and stuff, I thought there came a point that once you unlocked an original iPhone that it stayed unlocked, regardless of updates or restores. It probably had to do with using a custom IPSW or upgrading without changing the baseband or something like that.
    Anyone who knows for sure care to chime in?
     

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