Dialing This Secret Number Will Tell iPhone Users How Much Signal They Really Have

Every wonder if the signal bars in the upper corner of your iPhone are telling you the truth or not?
Well, there is a secret number that iPhone users can dial to see how much service their phone is really getting. Dialing “ *3001#12345#* ” switches the signal bars to negative numbers, which in turn represents the exact signal rather than just a range — the higher the number, the stronger the signal.
A number between -40 to -70 is equivalent to a 5-bar signal while -102 to -120 is the same as a 1-bar signal.
Check out the video below to see just how easy it is to see your phone’s true signal strength and switch back and forth from bars to numbers.
Source: Tech Insider
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