MSI B660M Mortar DDR4 (MS-7D42 Rev 1.1) Request for EC flash chip (W25X20CLNIG)

[mizuh0]

Hi all I hope im doing this correctly,

I need a firmware dump for the Nuvoton NCT6687D‑M controller (EC flash chip: W25X20CLNIG) used on the MSI B660M Mortar DDR4 (MS‑7D42, revision 1.1).

I acquired a ch341a black to reflash my bios, and was so excited to use it that I tested it on the W25X20CLNIG 3.3v chip as I didn't have the 1.8v yet for the bios chip itself.

Being a total newbie I straight up corrupted the EC flash chip, and now the power button does nothing, PS_ON# does not change, and when I manually short the PS_ON# pin it immediately turns off when I stop shorting.

The chip still works, after trimming the cheap soic8 clip I now have a reliable connection.

If anyone has a working dump from the same board, I would be very thankful.

[mizuh0]

opps i meant MSI B660M Mortar wifi DDR4, but i think that the non wifi one works too.

[noname2024]

MAG B660M MORTAR DDR4

U30

[mizuh0]

thank you noname2024 for the u30 chip firmware, my front panel headers now work after shorting the controller pins as i think the controller was in a semi bricked state.

im now trying to fix the msi ez led debug light where it is showing yellow despite me having a ram stick

could it be a bios issue as i flashed a clean msi bios with no dmi information?

[noname2024]

Bios msi you can get it from homepage msi

[stj]

pretty sure you need a matching pair of ram.
not a single stick.