Test Your iPhone 4′s Antenna Reception With Field Test Mode In iOS 4.1 [IPhone]

Now you are able to put your iPhone into field test mode , so one can allow to easily and precisely test your cell signal reception quality. You simply should follow these steps:

• First, upgrade your iPhone 4-or any iPhone-to iOS 4.1 .
• Dial *3001 #12345 #* into your phone.

Done. The signal bars shall be replaced with a range of (like -85). The higher the number this is, the more severe the signal it’s far.

Try it now, and close that magical gap that brings the signal to its knees. To get out of it, hit the home button. [Thanks Traviscat!]

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This post is tagged: field test mode, home button, iPhone, iphone 4, knees, reception quality, signal reception