Uninstall the app, find the MAC address, and update the firmware, .
How to Uninstall the App?
Sometimes it's necessary to uninstall the app and start over.
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To uninstall the app, press Home on the remote control and select URL Launcher Setting.
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Select Uninstall and press Enter.
Where is the MAC address?
Press Menu.
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Go to Support
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Press Contact Samsung
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The wired and wired MAC addresses are there, along with the serial number.
How to update the LCD Firmware?
Click here to go to the full instructions.