The board is:
FT490/ FT492/FT590/FT591 NM-B901
So when i press the power button, the keyboard , the power button, caps lock, numlock lights up for a second, fan spins , and it turns back off, that's it ...
Ok, so i opened it, i have 3.3V,5V,1.05V when charger or battery is connected, when i press power button, i get all the voltages on all the coils for a second, except VCCGFXCORE_I , if i read the schematics correctly there should be 1.2V,i don't know if this is or isn't important,because i don't know the sequence and is it a condition for pwr_ok signal...
so i tried flashing another bios... ther are a few on the forum, and there are 2 chips... one is 1mbit, other is main 256mbit.. i tried flashing a few dumps i found on the forum with clear ME, non of them worked, all i got was 3 flashes on the power button when connected charger, and 3.3V,5V,1.05V on the board, but it didn't start the board ....then i restored the original bios and got the first problem i had...all lights up, fan spins for a few second and that's it...
i've put my dumps in the other section, if someone could take a look at it is it corrupted or what??
here's the link : https://www.badcaps.net/forum/showthread.php?t=120862
i am out of ideas...
FT490/ FT492/FT590/FT591 NM-B901
So when i press the power button, the keyboard , the power button, caps lock, numlock lights up for a second, fan spins , and it turns back off, that's it ...
Ok, so i opened it, i have 3.3V,5V,1.05V when charger or battery is connected, when i press power button, i get all the voltages on all the coils for a second, except VCCGFXCORE_I , if i read the schematics correctly there should be 1.2V,i don't know if this is or isn't important,because i don't know the sequence and is it a condition for pwr_ok signal...
so i tried flashing another bios... ther are a few on the forum, and there are 2 chips... one is 1mbit, other is main 256mbit.. i tried flashing a few dumps i found on the forum with clear ME, non of them worked, all i got was 3 flashes on the power button when connected charger, and 3.3V,5V,1.05V on the board, but it didn't start the board ....then i restored the original bios and got the first problem i had...all lights up, fan spins for a few second and that's it...
i've put my dumps in the other section, if someone could take a look at it is it corrupted or what??
here's the link : https://www.badcaps.net/forum/showthread.php?t=120862
i am out of ideas...
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