Updating the firmware for a smart TV motherboard—like the with a 1366x768 resolution —is a common fix for boot loops or software glitches. This specific file is likely part of a multi-part archive used to re-flash the mainboard of "QUALITA" or generic Chinese-branded LED TVs. Guide to Installing P75 338 QUALITA Firmware
Copy the extracted firmware file (e.g., allupgrade_338_2G_8G.bin ) directly to the root of the USB drive. Do not put it in a folder. : Turn off the TV and unplug the power cord. Insert the USB drive into the TV's USB port. Download P75 338 1366x768 QUALITA part3 rar
: Once the update reaches 100%, the TV may restart automatically or the light will stop blinking. Remove the USB drive and power the TV on normally. Updating the firmware for a smart TV motherboard—like
Plug the TV back in. On many models using this board, you must on the TV (not the remote) until the indicator light starts blinking rapidly. Do not put it in a folder
: Multi-part archives (like part3.rar ) cannot be opened alone. You must download all associated parts (Part 1, Part 2, etc.) into the same folder on your computer before extraction.