Samsung Phones Field Test Mode

Samsung A310

Press MENU, 0, *. Then enter code 000000 (six zeros). Choose DEBUG, 4th line, last number.
Samsung A460, 3500, A540
Press MENU, 9, 0. Enter Lock Code: 040793. Select DEBUG SCREEN and press OK. Signal strength is the 2nd number on the 2nd line down. To exit test mode, turn off phone.

Samsung A500, N400

Press MENU 010. Enter 040793. Select DEBUG SCREEN. Signal strength is the 2nd number on the 2nd line down. To exit test mode, turn off phone.
Samsung A530, N330
Press MENU, 9, *. Enter Field Service Code, 000000 (six zeroes). Select DEBUG SCREEN. Signal strengthis on the line that says T-63 D089 (for example, D089 is -89dBm). To exit, turn power off.

Samsung A620, A660, A860, M300

Enter ## 33284 and press OK. Enter security code 040793. Select DEBUG SCREEN and press OK. Signal strength is 2nd number on 2nd line. (For example, T-XX Do XX-05). To exit, turn off phone.

Samsung A640

Enter ##33284#. The phone asks for a 6 digit security code which you will need to get from Sprint. After entering it the phone will go into the test mode screen. Your signal strength is on the line that says T-xxD0xx. To exit, turn off phone.

Samsung A630, A650, N330

Press MENU, 9, *. Enter Field Service code: 000000 (six zeros). Select DEBUG SCREEN, press OK. Signal strength is on the 5th line, 2nd number (T-65 DO 87-06). The number omits the negative. To exit, turn off phone.

Samsung A670, A570

Press MENU, 7, *. Enter Service Code: 000000 (six zeros). Select DEBUG SCREEN. Signal strength is on the 1st line. To exit, turn off phone.

Samsung SYNC A707, A717, A727

Press *#0011#. The phone will enter Test mode. Signal Strength follows P: (i.e. P:-73). This screen will also show the frequency being used (i.e. GSM 1900). The screen will automatically update itself. To exit press the END key.