Friday, February 14, 2014
A small trick helps you to check your network signal with number instead of signal icon. It should be helpful when you are in areas having weak network signal. To display signal strength number, dial *3001#12345#* and press Call:
To display signal in number as default, press and hold Power and Home buttons at the same time until iPhone is shut down. Then, turn on the phone again to see the signal strength in number.
In the case you want to restore to previous setting, open Field Test app and press Home button to return the the home screen.