: Using an incorrect dump file can "brick" your motherboard or cause permanent display issues. Always verify that the dump file is specifically for the JUG7.820.1221 and matches your panel's resolution (HD vs FHD).
: If you can see a faint image when shining a flashlight at the screen, your software is likely fine, but the internal LED strips need replacement.
: The standby LED is red, but the TV won't respond to the remote or side buttons.