iPhone 3G says 'Different SIM Detected Please connect to iTunes'

Discussion in 'iPhone Tips, Help and Troubleshooting' started by NewIphone, Feb 18, 2009.

  1. NewIphone macrumors member

    Jan 20, 2009
    OK, So I just put a new o2 SIM car into my iPhone and it says:

    'Different SIM detected Please connect to iTunes'

    I have connected my iPhone to iTunes and nothing is happening...

    Please help.


    Edit: oh yeah, i haven't jail-broken or unlocked the iPhone.
  2. Moi un Mouton macrumors 68000

    Mar 18, 2008
    Bracknell UK
    Have you tried a Hard Reset? That may clear it. If it doesn't, put it into DFU mode to restore the phone and then you'll be able to reactivate it.
  3. Edwin124 macrumors member

    Jan 13, 2009
    you're thinking of recovery mode! in order to put it in recovery mode to be able to restore it again make sure the phone is disconnected from the pc/mac, turn off and when you turn it off..hold the home button down as you plug it back in to the pc/mac, itunes will see it in recovery mode and ask you to restore it!

    hope this helps, good luck!
  4. KingHuds macrumors 6502

    Aug 2, 2008
    No he means DFU, connect to your computer, hold home + power for 10 seconds then let go of power but hold home for about 20-30 seconds longer.
  5. Edwin124 macrumors member

    Jan 13, 2009
    its in theory the same thing! but recovery mode is easier/faster!!! there's no need to wait 20-30 seconds when putting it in recovery mode, and in recovery mode itunes will recognize the phone in "recovery" mode and ask you to restore it!
  6. Moi un Mouton macrumors 68000

    Mar 18, 2008
    Bracknell UK
    From Sleepers iPhone News:

    "DFU (Device Firmware Upgrade) mode is not the same as restore mode. DFU mode bypasses the current OS installed and allows you to upgrade or downgrade your OS. If you are getting errors trying to restore in iTunes, DFU mode is very likely for you."

    From iSnork:

    "A lot of people seem to think that DFU mod and Recovery mode on the iPhone are the same. Apart from the blank screen in DFU mode and the iTunes/Dock Cable logo this is another, greater difference.

    When you put your phone in Recovery mode the iPhone still loads up a mac "OS" if you will. Whereas in DFU mode the iPhone does not load up the OS. This means that communication between the iPhone and iTunes in DFU mode is minimal - therefore iTunes will not randomly decide to interrupt you while downgrading firmware etc."

    So in theory it's not the same thing, and DFU mode is what's needed here.
  7. Edwin124 macrumors member

    Jan 13, 2009
    i stand corrected on the recovery and DFU mode! :D

    i guess i need to know what the OP is trying to do, if he's trying to JB the phone, putting it in recovery mode and connecting to itunes will help him install the ISPW file that he most likely got from quickpwn by holding shift when he goes to restore, then when that's done and you're ready to run quickpwn is when it goes into DFU mode, which quickpwn will put it in for you/guide you

    if you're trying to restore it to factory settings w/out jailbreaking and using it on the cell phone provider it was intended for putting it in recovery mode is what you want to do

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