How to see your iphone cell signal in numbers or db

See Your iPhone Cell Signal in Numbers or dB

23
STEPS
TOOLS

Tap Phone

Tap Phone

Tap Keypad then type in *3001#12345#* and press call

Tap Keypad then type in *3001#12345#* and press call

Now the bars at the top left have been replaced with a negative set of numbers that are in dB. The closer to 0 the better the signal, but your phone can work on much higher numbers, aka -100 or more.

Now the bars at the top left have been replaced with a negative set of numbers that are in dB. The closer to 0 the better the signal, but your phone can work on much higher numbers, aka -100 or more.

This feature helped me and AT&T resolve the issue of poor phone call quality in my house. Not useful for anything more than that, but I hope it helps you out like it helped me.

  • 1.0 iPhone
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