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Turn Off Field Test Mode

My iPhone 4 "inherited" the Field Test Mode from my 3GS (that had been upgraded to iOS4) when I brought across my apps from the 3GS. Field Test Mode with iOS4 seems to operate on an app by app basis, rather than being able to set the signal strength bars or the dB reading and staying in the selected mode for all apps until changed.

So, after numerous searches, I can't find a clear, definitive way to turn off or delete Field Test Mode. I've tried to reset network settings and the usual reboot, etc.

I've passed on a total reset because the Field Test capability was passed from by 3GS backup to the iPhone 4.

Anyone have a clue?

iPhone 4, Mac OS X (10.6.4)

Posted on Jun 27, 2010 3:54 PM

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54 replies

Turn Off Field Test Mode

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