LG KS20 Operating Instructions Manual page 180

10. Phone Test Mode _ 3G smart Phone KS20
10. Phone Test Mode _ 3G smart Phone KS20
1. Run Dialer, then insert "2676625720#" by tapping keypad
2. Tap 3. Device Test
3. Tap 6. Q_Test Program
4. Tap PTM(Phone Test Mode) Button.
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