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.
To uninstall the app, press Home on the remote control and select URL Launcher Setting.
Select Uninstall and press Enter.
Where is the MAC address?
Press Menu.
Go to Support
Press Contact Samsung
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.