The indicator light (LED) will typically blink rapidly during the process. Do not turn off the power until the blinking stops or the TV restarts. Risks and Verification
Extract the .rar file and copy the .bin file to the root directory of a FAT32-formatted USB drive. Execution: With the TV unplugged, insert the USB drive. Download LE40B8000 MSOV590 18275 rar
Updating this type of TV involves a "USB forced flash" because the TV usually cannot boot into a menu to select an update. The indicator light (LED) will typically blink rapidly
This is a widely used universal TV board (Mstar V59). The "MSOV590" in your filename refers to this controller. Download LE40B8000 MSOV590 18275 rar
Press and hold the Power button on the TV (not the remote) and plug the power cord back in.