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Lenovo Yoga 2 Pro NM-R074 REV: 1.0

this A074 or R074 i see A not R in the picture can you make sure A or R thank you
 
how do u read or write the EC bios? its a embedded flash inside the controller.
I may have a corrupted EC bios, still finding ways to rewrite the chip. thanks
 
EC is embedded controller, there is 128kbytes of memory inside. My yoga 2 pro cannot turn on, with flashing keyboard backlight. i reflashed main bios winbond chip. laptop still dead.
suspect ec bios could be problem. but i dont know how to flash the embedded controller ( BGA chip is IT8586vq).

does anyone know how ? thanks
 
spintop said:
EC is embedded controller, there is 128kbytes of memory inside. My yoga 2 pro cannot turn on, with flashing keyboard backlight. i reflashed main bios winbond chip. laptop still dead.
suspect ec bios could be problem. but i dont know how to flash the embedded controller ( BGA chip is IT8586vq).

does anyone know how ? thanks
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