Home > iPhone > Unknown firmware/Updating firmware on unactivated iPhone

Unknown firmware/Updating firmware on unactivated iPhone

Today I was in an interesting circumstance. I needed to jailbreak/unlock an iPhone, but had no idea what firmware was on the phone. Since the phone was unactivated I couldn’t pull up the settings icon nor could I use iTunes to figure it out. After searching and searching and finding nothing, I did the following and it worked like a charm.

  1. Turn the phone off
  2. Hold down the Home button and plug the phone into the computer via USB
  3. Continue holding Home until the screen shows the “connect to iTunes” screen
  4. Open iTunes on your computer, click “OK”
  5. Hold down Shift and click on Restore
  6. Choose the firmware file you want (one downloaded from the iPhoneWiki’s System page works) to install on the phone and proceed as directed

I ended up doing things this way because nothing else I could find on the net worked (mostly this meant field test mode didn’t work). While this doesn’t tell you what firmware version you are using, it gets you to a point where you will at least know. After this, I just ran redsn0w and it was a done deal!

Categories: iPhone Tags: ,
  1. Josip
    July 5, 2012 at 9:23 am


  2. Ryan
    July 17, 2012 at 8:36 pm

    I don’t know how you figured this out, but you saved my hours of frustration. Thank you!!!!!

  3. Rohangohan
    February 15, 2014 at 6:03 am

    but every time i do this same process it gives error 3004 iphone could not restore???

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