To download and install the firmware, follow this guide for your smart LED TV mainboard. This software is typically used to fix "hang on logo" issues, boot loops, or to change the screen resolution to Full HD (1920x1080). 1. Download the Firmware
If the USB method fails because the board is completely dead or "Read Time Out" occurs, you may need an to write the software directly to the EMMC chip via JTAG or ISP. This is a professional repair step and requires specific hardware. Download HV320 PB801 1920x1080 M90 part1 rar
: Copy the .bin file directly to the USB drive's root folder (do not put it inside a folder). 3. Installation Steps (USB Method) Power Off : Unplug the TV from the wall. To download and install the firmware, follow this
: Use WinRAR or 7-Zip to extract the .rar file. Right-click "part1.rar" and select "Extract Here." Download the Firmware If the USB method fails
: Wait approximately 3–5 minutes. The TV will either restart automatically or the light will stop flashing. Do not turn off the power during this process , as it can brick the board. 4. Advanced Recovery (EMMC)
: Plug the drive into the TV's USB port (use the USB 2.0 port if labeled).
: Press and hold the Power button on the TV keypad (not the remote) while plugging the power cord back in.