Cingular PPC-6600 User Manual

iPhone Field Test Mode

Accessing Field Test Mode on the iPhone is relatively simple, just open the Phone app, switch to
the keypad and dial the following code: *3001#12345#* and then press call. If you dialed it
correctly, your iPhone will enter Field Test Mode and you’ll see the numerical value for signal
strength in the upper left hand corner of the screen where the signal strength was previously
displayed in bars. To exit and return your iPhone to normal status, all you need to do is hit the
Home button. The mode is available on any iPhone running iOS 4.1 and all later versions.

Android Field Test Mode

Accessing Field test mode on Android phones is also straightforward. You simply need to
find your way to “Settings” > “About Phone”, and your numerical signal strength will be
available under either Network or Status, depending on the model of the phone you own.

Other makes & models:

Apple iPhone 2g, 3g and 3gs – firmware 3.1.3

In phone mode dial *3001#12345#* then press CALL. The field test screen will appear. Select
“Cell Information.” Signal Strength is on the top line after RX-. Frequency follows FQ and is based
on the channel number (e.g. 100-200 is 850MHz and 500-700 is 1900MHz). The top line displays
information about the tower you are using. The lines below display info about your neighboring
towers.

AT&T HTC Wizard 8125, 2125

Enter *#*#364#*#* and your phone will enter test mode. Signal strength follows RSSI. Number
shown is not –dBm. Strong signal is 31 (approx -50dBm), weak signal is 4 (approx -105dBm).
The higher the number, the stronger the signal. Press END or DONE to exit.

AT&T (Samsung) BlackJack

At the home screen, type in *#0011# and the information will pop up (do not hit ok or anything
else after entering key sequence.) The signal strength will be next to RSSI. To exit, press “EXIT”.

AT&T HTC 8525, 8520

Run the application “FieldTest.exe” in the windows folder. Scroll to “RSSI 1” near bottom of phone
for received signal dBm. Strong signal is high 30’s, weak signal is low teens.

AT&T Option GT Max and other AT&T cards

Signal Strength is below the bars on the main screen.

Audiovox 8300, 8500, 8600, 8615

Press ##2773 and press END. Scroll down and select DEBUG. The signal strength is the 4th line
down (for example, Rx-84). To exit, press the END key again.

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