hi all,
I have a vaio laptop that turns off in 1 or 2 seconds. I already took it apart and the voltage of all rails seems ok. the cpu is also in fine condition, there is no discrete gpu in this model.
I removed the 64mb bios chip from the board and connected it to a serial flash programmer, toked the bios update file from sony website extracted it and programmed the content of the rom file to the chip. after soldering the laptop refuse to turn on.
I think there is something special with this vaio board, the content of the update bios file is very different of the backup I made for the chip! encrypted? maybe but not sure. and where is the EC rom?
I think a bios dump from a working machine will answer my questions. if someone can share this file that would be nice.
some info:
vaio sve15 serie
motherboard mbx-269
original bios version R0160D6

thank you

On Sony only update (part). It is not correct to program it in FLASH. Program your dump back. (Also upload it here)
Reconnect RTC battery. See all power rail.

thanks for your reaction. finally the laptop worked and as I suspected the problem came from bios.
I get the working bios file from this page http://www.elvikom.pl/forum/viewtopic.php?p=104475
programmed the content to the flash chip and voila.
thanks again