If the phone is not detected by the computer in regular way, it means the bluetooth or media card mode is activated by the user. To remove a phone lock for this case special file should be flashed in the download mode. It will lead to COMPLETE WIPING ALL USER DATA.
1. Download and install Samsung Drivers http://www.unlockbehold.com/files/SAM... Make sure the battery is fully charged. 2. Turn your T669 off. Than press "volume down" + "camera" + "power" buttons simultaneously it should go to the download mode Connect your T669 to the computer. Now it should detect your phone and install driver automatically. 3. Press phone search button, it should show T669 4. Press load file button, pick file and press Reset My Lock! 5. Perform a factory reset, dial *2767*3855#