Firmware (the low-level software that controls the hardware) is stored in the board's non-volatile eMMC or flash memory. Common reasons for flashing new software include:
The TV reboots constantly or hangs on the Android logo. ldd.h350a.a75 firmware
Fixing screen mirroring, incorrect resolution, or inverted colors. Firmware (the low-level software that controls the hardware)
The TV should enter an "Upgrading" screen. during this time. ldd.h350a.a75 firmware
If the TV is completely unresponsive, technicians use an eMMC programmer to write the full dump file directly to the chip. This requires a for the specific panel model. Where to Download Firmware