Try performing a factory data reset

WARNING! A factory data reset deletes all customized settings, including channels, account information (such as a Google™ account), system and applications data, downloaded apps, wired and Wi-Fi network settings, parental lock settings, and camera device's data. The TV will return to how it was at the time of purchase.

Perform a factory data reset from the Setting screen

1. Turn on the TV.
2. Open the Settings screen. How to access Settings
   • If the remote control has a Quick Settings button:
     1. On the remote control, press the (Quick Settings) button.
     2. Select Settings.
   • If the remote control does not have a Quick Settings button:
     1. On the remote control, press the HOME button.
     2. Select Settings.
3. The next steps will depend on your TV menu options:
   • Select System → About → Reset.
   • Select Device Preferences → Reset.
   • Select Device Preferences → About → Reset, Factory reset or Factory data reset.
   • Select Storage & Reset.
4. Select Factory data reset or Reset.
5. The next steps will depend on your TV menu options:
   • Select Erase Everything → Yes.
   • Select Erase Everything.
   • Select Yes.

Notes:

• If you have set a PIN code on your TV, you will be prompted to input it.
• The factory reset may take a few moments. Please wait until you are informed that the process has been completed.
• After the reset process completes successfully, your TV proceeds to the Initial Setup wizard.