Hi looks like its been a few years since you sent this. I was wondering if you were able to figure it out. I am having the same problem now. I was updating the bios and my dog jumped on the laptop and powered it off. Pretty unfortunate. I bought the ch431a but i cant find the 8 pin connector on the mobo. There is 3 of them that look the same. Also not sure how to use the file correctly to rewrite the bios onto it.