Field Test Mode hack

Discussion in 'iOS 5 and earlier' started by CBR900RR, Oct 19, 2011.

  1. CBR900RR macrumors 6502a

    Joined:
    Oct 11, 2008
    Location:
    Middle of Pacific
    #1
    Start up you phone dialer, type *3001#12345#*, send, it will take you to field test mode with the numeric signal number.

    With the field test mode still on, reboot the phone by holding the power and home button together until you see the apple logo, release both the button, let it boot to home screen, and now you can toggle the signal between bar and numeric by tapping it.

    To reverse the effect, start up you phone dialer, type *3001#12345#*, send, when you in field test mode, just hit the home button to exit and you phone will be back to normal.

    Enjoy
     
  2. mulo macrumors 68020

    mulo

    Joined:
    Aug 22, 2010
    Location:
    Behind you
    #2
    testing now, updating in a few seconds :)

    update: works flawlessly as described :)
     
  3. saving107 macrumors 603

    saving107

    Joined:
    Oct 14, 2007
    Location:
    San Jose, Ca
    #3
    This trick has been known for a while, but the method to reverse doesnt always work and the only way to fix this is to Reset your Network Settings.

    Just a heads up.
     

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