Here are some specific changes mentioned in various sources:
The TV should enter an "Upgrading" screen. during this time. ldd.h350a.a75 firmware
3-in-1 (Power Supply, LED Driver, and Motherboard on one PCB). Here are some specific changes mentioned in various
If the picture is upside down or has "solarized" colors after an update, you may need to enter the Service Menu (usually by pressing Source/Input + 2580 or Menu + 1147 ) to adjust the "Mirror" or "LVDS" settings. ldd.h350a.a75 firmware