: Do not power off the TV during the update. This will damage the motherboard's SPI flash memory. Troubleshooting Common Issues
: USB Upgrade (Plug-and-play via the TV's service port).
I can give you more specific instructions based on your situation. How to Upgrade VSP Devices via USB Drive - Extreme Portal
: This is a common "service menu" issue after flashing. You can usually fix this by entering the service code (often Menu + 1147 or Input + 2580 ) and adjusting the "Panel Settings" or "Mirror" option.
