Undocumented iPhone Field Test Mode

Here’s a screen that you weren’t supposed to see on your iPhone. It’s the iPhone’s Field Test Mode which provides the following menu items to be used in test mode:

• Network Information
• Cell Information
• GPRS Information
• PDP Information
• Call Information
• Versions

iPhone Field Test Mode

1. Select the Keypad (dialer) on your iPhone
2. Enter the following number:
   * 3 0 0 1 # 1 2 3 4 5 # *
3. Press the “Call” button

That’s it-your phone will present you with the Field Test screen. This was originally posted on the Cellular PCS web site (Apple iPhone Field Test Mode).  To be honest, I really have no use for this kind of information…  Interesting though.

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