How to reset your Samsung TV password lock pin.
1. Switch your TV onto standby
2. Press the below key sequence in quick succession:
Mute – 8 – 2 – 4 – Power
* Please note that if your TV comes on during this key sequence, you will need to begin the process again.
3. The PIN code will have been reset to 0000.
4. Enter your new PIN code and confirm it.
How to enter Samsung TV service menu :
Samsung TV SETUP :