Tip & How-To about Cell Phones
The test mode display is activated through the test mode command: *3001#12345#.
Once you enter this command, you are given a list of options, including
'Field Test'. Select Field Test and then hit 'Enabled'. You must power
down the phone and power it up again to get out of the test mode menu.
The test mode screens may vary somewhat between different firmware
versions and providers.
Once you power up the phone you are given a new menu choice at location 10 called 'Field Test'. There are several different test mode screens. Type in a test number to get the screen listed below. Alternatively you may use the arrow buttons to move between the 199 different field test screens. Entering test number '0' will disable the test mode, but will still allow you to access the test menu.
If you are using the field test mode and are unsure what the screens mean then hold down the # key for about four seconds to get a brief description of the screen. Repeat holding the # key to return to the test mode values. Thanks to L. Tee for this tip
If you would like to see what is behind the test mode screen then keyguard the phone, wait until the 'press unlock and then *' screen disappears, and then press one of the numeric keys to see the regular screen. Thanks to L. Tee for this tip
Note: If you make or receive calls while in test mode, you may not be able to change the speaker volume. To turn off the field test mode you can select field test '0' or enter a few digits and then clear these digits.
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