Simultaneously press “DISPLAY” button on remote handset and Volume- button on the front panel of television receiver for 6 to 8 seconds to get the various service menus.·To access any parameter , use Up/Dn keys of Program/Channel ·To change value of any Parameter, use +/- keys of Volume ·To exit POWER switch off the set
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Oct 30, 2020 - I'm unable to factory reset after this text started appearing ... It's sita P mode from service menu. You have to stand on contrast in ...
To enter service mode on a TCL 21F5 model TV, you will need to follow these steps:
Turn off the TV using the remote control or the power button on the TV.
Press and hold the "Menu" button on the TV.
While holding the "Menu" button, press the power button to turn on the TV.
Release the "Menu" button when the service menu appears on the screen.
Please note that making changes to the service menu can cause permanent damage to your TV if done incorrectly. It is recommended that you only make changes to the service menu if you are familiar with the settings and have proper knowledge of the TV's inner workings.
Also, It's better to check the manual or contact the TCL customer service for more details.
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