Forget about the bars that aren't that accurate. Tell us the dBm & asu signal strength numbers your N5 phone has at your best signal and worst signal sites where you can still make a good phone call... I don't think a dead spot would be useful.
To get dBm and asu;
Go to Setting > About Phone > Status and tell us your Signal Strength that is dBm # and asu #.
A mobile phone signal (or reception) is the signal strength (measured in dBm) received by the mobile phone from the cellular network (on the down link). Arbitrary Strength Unit (ASU) is an integer value proportional to the received signal strength measured by the mobile phone.
To get dBm and asu;
Go to Setting > About Phone > Status and tell us your Signal Strength that is dBm # and asu #.
A mobile phone signal (or reception) is the signal strength (measured in dBm) received by the mobile phone from the cellular network (on the down link). Arbitrary Strength Unit (ASU) is an integer value proportional to the received signal strength measured by the mobile phone.