Do not turn off the TV during the update process.
This post provides a deep-dive resource for downloading the firmware/software RAR file for the Haier LE40B8000 LED TV Download Haier LE40B8000 rar
This information is intended for personal repair purposes only and should not be sold. If you can tell me: Do not turn off the TV during the update process
The the TV is having (stuck on logo, no power, etc.) The board number printed on the main circuit board I can confirm if this is the correct solution. haier le40b8000 chassis v59 - service manual - Elektrotanya Download Haier LE40B8000 rar