>>22591yes i built a 25XX (SPI BIOS chip) programmer with a raspberry pi pico, some hacked together C i stole from serprog, 2 of those header plugs i crammed out of my trash bin of 30 year old electronics, wires, a DIP socket harvested from a dead ch341a flasher, and some super glue
https://mister-muffin.de/p/m-VD.jpgthis is pretty much the best cheap BIOS programmer you can get/make, a pi pico costs 5$, that socket costs probably 0.50$ or can be harvested from something else (you don't need one, you can just glue jumpers together or use another push-in DIP socket without a lever), and wires are basically free since you probably have them floating around
i also assume you have some super glue and a soldering iron floating around, so this is maybe 6$ at most, vs a ch341a that usually costs 7-10$ and blasts fucking 5V onto your data lanes for some retarded reason which could fry your chip if youre unlucky