Hi Nicklas,

well, at least you don´t have a good (enough) connection to the chip.

Check your log file: "probe_spi_rdid_generic:" should give you the same ID as 
given in the datasheet of your chip. Further it should give you always the same 
value.
As the value changes a lot, it seems that you have bad cable connections or an 
signal integrity problem.
Check the cables/cable connections and try with a lower frequency if the 
programmer supports this. Try with cables as short as possible as well.

Regards,

Simon




-----Ursprüngliche Nachricht-----
Von: Nicklas Lennert <lennert1...@gmail.com> 
Gesendet: Dienstag, 21. April 2020 15:49
An: flashrom@flashrom.org
Betreff: [flashrom] W25Q256JWEQ 1.8V

Hi.


I'm trying to flash bios to a motherboard MSI B450M-A PRO MAX.

I have connected to the "new type" JSPI1 connectors.

Think i have a connection to the chip, but its not listed on your chip list. 
Gets a response only once every time i power up the chip.

I use a CH341A PRO programmer with a 1.8V converter. Then connected wires 
directly to the motherboard. No unsoldering. Ubuntu 18.04.4 LTS



https://www.winbond.com/resource-files/w25q256jw%20spi%20revb%2012082017.pdf

https://forum-en.msi.com/index.php?topic=322528.0 - Connected by this 
diagram


Can you help me?

Best regards

Nicklas Lennert

Denmark

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