Field Test Trick For Cellphone Signal Strength

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Your cellphone’s signal strength changes depending on several factors, from any interferences to how far you are located from a cell tower. Your cellphone signal strength is measured in decibels (dBm).

You can check your iPhone signal strength by using its secret Field Test mode. Open the Phone app and dial *3001#12345#* on the keypad. In a few seconds, you’ll see a mishmash of numbers.

On the top right side, there is a menu. Go through each list until you see an entry that contains rsrp. That is your phone’s signal strength.

If the dBm approaches -120, you are located in what we fondly refer to as a “dead zone.” Anything better than -100 is considered a usable signal. A strong signal is -40 or better. So, the closer that number is to zero, the better the phone’s signal.

Credit: Kim Komando via USA Today