The logo appears on the TV for a few seconds then after about 20 seconds it returns to stand-by
I checked the power and it's okay. I'have forced the power on and the BL ON and all the voltage are ok and the backlight it's ON.
I have reprogrammed the spi with the file read from another tv but the problem it's the same.
I think it may be a nand data problem or a failure on the main.
you have the dump of nand or the schematics for this tv ?
I tried with the usb update taken from the toshiba site but it does not work