Samsung LT27A750ND-ZA - Manual (Page 198)

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English
● Unlock
1. Press the { button on your remote.
2. Press the u / d / l / r to select a locked application, and then press the
ENTER E button.
3. Press the u / d / l / r to select Unlock , and then press the ENTER E
button. The Security window appears.
4. Enter your password. If you have not created a password, enter “0-0-0-0”.
5. Press the ENTER E button. The Service lock released. window appears
confirming the lock has been release, and then closes.