SOP 8 to SOP 16 conversion for BIOS programming with CH341a programmer

[MrWooh]

Hi,
I'm trying to save my bricked ASRock x470 Taichi motherboard. After a bios update it unfortunately doesn't boot anymore. Hence, I'm trying to program it with an CH341a programmer (MiniProgrammer). The bios chip on board is a 16 PIN, 1.8V Macronix MX25U25645GMI00 chip.

I have used the black version of the the programmer with a 1.8v converter (to reduce it from 5v) in combination with ASProgrammer (Windows) and IMSProg (Linux) tool. With both I was able to read out some 8 PIN chips with an SOP 8 testing clip.

Now I'm wondering how I can convert the 8 PINs from the programmer to attach it to the 16 PIN bios chip. I have a SOP 16 testing clip. Based on my research the PIN conversation should look as following:

8 PIN CH341 programmer -> 16 PIN SOP Testing Clip
1 -> 7 (CS)
2 -> 8 (MISO)
3 -> 9 (WP)
4 -> 10 (VSS)
5 -> 15 (MOSI)
6 -> 16 (SCK)
7 -> 1 (HOLD)
8 -> 2 (VCC)

I tried to do the conversion with with DuPont cables, but wasn't able to get any results. I'm aware that the SOP testing clips can be very finicky to attach, but at this point I'd still try to avoid soldering.

Does this PIN conversion look right?

Thank you!

[MrWooh]

For those who are interested a quick introduction about the CH341a programmer: https://www.onetransistor.eu/2017/08/ch3...matic.html

As well some background about IMSProg (Linux) and ASProgrammer (Windows):
- https://www.onetransistor.eu/2023/10/ims...linux.html
- https://www.onetransistor.eu/2018/11/use...ndows.html