programming kbc msi ms-17f21

[elsomer]

hello, i have this laptop msi with motherboard ms 17f21, i need to program kbc because i replace the pch , now the laptop power but no display , i only have the programmer rt809f , after looking information on the forum i think this is the pinout to connect it to my programmer on the connector of the keyboard on the motherboard, can someone told me if am i correct? this is the schematic attached and the pinout that i think is correct

kso3 gnd pin 23
Ksi4=cs pin 14
ksi5=clk pin 13
ksi6=din(miso) pin 12
ksi7=do(mosi) pin 11

if this is correct, do i need to conect the ac adapter of the laptop to the motherboard for the kbc can be programed? thanks

[reformatt]

Re: programming kbc msi ms-17f21

Why would you need to reprogram the EC after a PCH replacement? If it's powering on, that seems to indicate your EC is working fine. If you want to go ahead and reprogram, then yes the board needs to be powered via adaptor to supply 3.3V to the EC during programming. Pinouts are correct for a ENE EC.

Where did you source your replacement PCH from? If you are certain this is working (and lets face it, if you got it from China then it's highly suspect), then you are supposed to clean your BIOS ME region. That shouldn't prevent a successful boot though, just much slower.

[elsomer]

Re: programming kbc msi ms-17f21

Hi reformatt thanks for answer , the laptop came with no power at all , after i checked, i detect a short on coil of 3.3v , after that i inject 1v on that coil and pch get hot immediatly and i bought a replacement from china , after i replace pch now the motherboard turns on but with no display , i checked that the motherboard has 3.3v, 5v , 1.2v and the voltages of cpu and GPU, thats why i think i ned to reprogram kbc

[reformatt]

Re: programming kbc msi ms-17f21

I personally wouldn't trust any PCH or CPU from China. Typically removed from non-functioning boards. Sorin did a video on this recently. He subsequently bought a PCH from a vendor in Germany at twice the price. This was new and worked. The first from China was faulty and he got a refund.

https://youtu.be/1YKggpzFto4

Feel free to re-program your EC though for the sake of exercise. My money is you got a reballed 2nd hand PCH off a faulty board. Removal methods that they use are highly questionable too.

[elsomer]

Re: programming kbc msi ms-17f21

thanks for answer reformatt, im still triying to get this works, can you help me to clean me of the main bios pls, or someone else pls, thanks

[Vesko356]

Re: programming kbc msi ms-17f21

thanks for answer reformatt, im still triying to get this works, can you help me to clean me of the main bios pls, or someone else pls, thanks

Read forum rules please.
Bios requests are not allowed in this sub forum.
All bios requests go here:
https://www.badcaps.net/forum/forumdisplay.php?f=40