I've been flashing the BIOS chip on a Steam Deck, trying out some changes and I have not been able to successfully flash this chip with the clip in circuit at all. Every time I have had to desolder the chip and place it in an adapter. The chip is a
Winbond W25Q128JW if it matters.
I saw an old thread some days ago where people were discussing this programmer and saying that you can get by overcurrent protection by bridging C22. I tried that on one of my TL866II+'s and it didn't help. I have 2 of these things. I never get a an overcurrent error in the Xgpro software, or the minipro Linux software, it just fails. In Xgpro there is a dropdown to select the vcc current but it's greyed out on mine, I guess my programmers don't support current selection?
Everybody I spoke to says they can flash this chip with the clip using a CH341A programmer with a 1.8v adapter. I may just buy one of those but I already have way too much crap laying around that I use twice a year. Anyone have any success with this programmer in circuit? It's been good for pretty much everything else I do so I'd rather just make it work if possible.