Thank you for letting me know. The TV had corrupted firmware, I have installed Vestel software and its working but there are many small problems with it, like 1. inability to turn off the TV with the button
2. not being able to turn off the flashing Hitachi logo
3. very rare there are visual artifacts in a form of white noise while using HDMI (don't know if its becuae Vestel soft or not)
4. On the original Hitachi board it seems that 12Vcc is off regardless of the standby mode in settings, but on Vestel it applies power all the time
5. The board has 4 HDMIs but only 3 are enabled. I guess I can enable it the question is how? how to edit the files before the flash or if its possible to do it from TV's service menu which is currently read-only
6. There is a ghosting effect on the screen, for example when there is a white element displayed it will be visible on the dark element for some time in the same spot ( This problem still occurs with different mainboard with correct firmware)
7. there are small visible lines on when displaying dark picture tho I belive its hardware issue
So my thinking process lead me to believe that most or maybe even all of those problems would be solved by the correct software. Yesterday I managed to repair another board that has the original Hitachi software. Most of the problems seem to be solved except problem number 6.7 and I did not test problem number 3. My situation has changed but regardless of that, it would be nice to have backup software for this board. additionally, it would be great to learn how to dump TVs software and how to modify files before flashing them, change the remote control configuration, number of HDMIs etc.
best regards
Bernard
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