Its not surprise at all… this is a branded OEM system and a lot of them have SPI access locked for preventing firmware modifications/security.
So this forces lot of users to try the CH341A programmer or similar.
Some ICs, even have to be de-soldered for reading/programming.
Your not the first with this situation and definitely not the last one…
Here’s an identical situation like yours on a Dell 7080
EDIT: I don’t need any dumps as i do not intend to lose my time with these or any other similar issue. I helped you and pointed you the way/tools, that’s it.
I did not offer myself to solve your issue.