Dialing *3001#12345#* turns your Apple iPhone into a mobile field testing station, popping up a menu that provides detailed reporting on strengths and characteristics of the cell towers in your area, plus numerous other details AT&T would perhaps prefer you didn’t see.
Warning: Dialing this number could adversely affect both your iPhone and/or your cellular network. Although it seems that most of the information is read-only (so you can’t change anything), field modes like this have the potential to damage your phone and possibly interfere with the phone network. We are providing this information as-is; we cannot be held responsible if anything you do in this field mode damages your phone or the phone network.
That said, if you dial the number and create a problem for yourself or your network, don’t say you weren’t warned!
Thanks to Richard Baguley from WirelessInfo.com for the info.
:hi:
:imho:
Warning: Dialing this number could adversely affect both your iPhone and/or your cellular network. Although it seems that most of the information is read-only (so you can’t change anything), field modes like this have the potential to damage your phone and possibly interfere with the phone network. We are providing this information as-is; we cannot be held responsible if anything you do in this field mode damages your phone or the phone network.
That said, if you dial the number and create a problem for yourself or your network, don’t say you weren’t warned!
Thanks to Richard Baguley from WirelessInfo.com for the info.
:hi:







