How to Replace Your iPhone Signal Strength Bars With Numbers

How to Replace Your iPhone Signal Strength Bars With Numbers

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These are instructions on how to replace the signal strength bars on your iPhone with a numerical representation of reception strength. (ie. numbers instead of bars).

Step One
Press to launch MobilePhone from your Springboard.
How to Replace Your iPhone Signal Strength Bars With Numbers

Step Two
Tap the keyboard tab then dial *3001#12345#*.
How to Replace Your iPhone Signal Strength Bars With Numbers

Step Three
Your iPhone will now launch Field Test. Notice your strength bars have been replaced with a number. This number is your reception strength measured in decibels. The closer to 0dB the stronger your signal.
How to Replace Your iPhone Signal Strength Bars With Numbers

Step Four
Press and hold the Power button until the power slider appears.
How to Replace Your iPhone Signal Strength Bars With Numbers

Step Five
Press and hold the Home button until the Field Test program is terminated. Notice the signal strength numbers still remain.
How to Replace Your iPhone Signal Strength Bars With Numbers

To Switch Back to Bars
Dial *3001#12345#* again to enter Field Test mode.
How to Replace Your iPhone Signal Strength Bars With Numbers

Press the signal strength at the top left of screen to toggle between numbers and bars. Then press the Home button to exit Field Test mode.
How to Replace Your iPhone Signal Strength Bars With NumbersHow to Replace Your iPhone Signal Strength Bars With Numbers
AfiqAzizi - June 19, 2016 at 5:31am
How to change back to the original signal?
Breyana - June 24, 2016 at 2:47am
I literally 30 secs. Just had this same problem!! Literally, but only thing you do is repeat the steps but instead of holding the lock button (If your iPhone is updated) you will click where it says "Back to Phone" in the very upper top left of the phone and when it goes back to the dial pad, click the signal strength numbers and it should return back to normal.
tdB - September 30, 2014 at 10:54pm
To get this to work for me I entered field test mode, then double tapped the home button to switch back to the dial app. I entered the code again which brought me back to the field test app. I then held the power sleep button until the slider appeared. Then held the home button to return to the normal app desktop. The -xxx dB stayed.
emstuntz - September 20, 2014 at 6:49pm
Works fine on iOS 8 :)
bubba153 - May 7, 2014 at 4:53am
Never mind. It was Siri. Apparently the Siri screen was interfering with the Field Test app closure. Turned Siri off briefly, and it worked perfectly. I can now use either the numeric meter or the dots, and can toggle between them. Thanks!!
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