Hey guys, this laptop came to me for servicing and it has a strange problem.
The board is B5W1A B7W1A LA-D641P
The problem is that it doesn't turn on when power button is pressed, the pwr button is on the keyboard,and i went accross the keyboard with my palm and laptop turned on, after further investigating i found out if i press power button and then prtscr,del or fn button it comes on and everything works fine.
So first i have to press power button and the in a second or two one of the mentioned buttons and laptop turns on and runs great,all the buttons on keyboard work,non of them are stuck, tried it with software from keyboardcheker.com...
Then when in windows if i press power button laptop goes off fully in a few seconds, altough i've set it to go to standby...like it was pressed all the time and turns it off...
So i opened the laptop, found schematics and tried turning it on by shorting pins on the connector and it won't turn on, i have 3.3V on keyboard pin and i short it to ground,3.3V goes down , but laptop doesn't turn on...
I tried flashing latest bios 1.21, tried backflashing older versions, everytime the same...
I'm confused of what is going on...
The board is B5W1A B7W1A LA-D641P
The problem is that it doesn't turn on when power button is pressed, the pwr button is on the keyboard,and i went accross the keyboard with my palm and laptop turned on, after further investigating i found out if i press power button and then prtscr,del or fn button it comes on and everything works fine.
So first i have to press power button and the in a second or two one of the mentioned buttons and laptop turns on and runs great,all the buttons on keyboard work,non of them are stuck, tried it with software from keyboardcheker.com...
Then when in windows if i press power button laptop goes off fully in a few seconds, altough i've set it to go to standby...like it was pressed all the time and turns it off...
So i opened the laptop, found schematics and tried turning it on by shorting pins on the connector and it won't turn on, i have 3.3V on keyboard pin and i short it to ground,3.3V goes down , but laptop doesn't turn on...
I tried flashing latest bios 1.21, tried backflashing older versions, everytime the same...
I'm confused of what is going on...
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