š” Important note: Please measure the signal strength right next to your electricity meter or meter cabinet to ensure reliable results.
š¹ For Android devices
Open the Phone app.
Enter
#*#4636#*#*.The āTestā menu will open automatically.
Select āPhone informationā.
Under Signal strength, youāll see a value in dBm ā note it down.
Alternatively: Settings ā About phone ā Status ā SIM status.
š For iPhones (Field Test Mode)
Turn off WiFi.
Open the Phone app.
Enter
*3001#12345#*and tap Call.The Field Test Mode will start:
iOS 16 and newer: Youāll see the FTM Dashboard. Note the value under āLTEā ā āRSRPā.
iOS 15 and older: Tap āLTEā, then āServing Cell Measurementā. Note the value under āRSRPā or ārsrp0ā.
To exit: Swipe up from the bottom of the screen or press the Home button (on older models).
š Understanding the values (RSRP in dBm)
-50 to -85 dBm ā Excellent to very good signal ā
-85 to -90 dBm ā Good signal š
-90 to -100 dBm ā Fair/adequate signal š¤
-100 to -110 dBm ā Weak signal, calls often still possible š
Below -110 dBm ā Very poor or no signal ā
š Good to know: The closer the value is to 0 (less negative), the stronger your signal.