I see. Hopefully your BIOS chip is resilient enough, as supplying 5V instead of 3.3 V might have damaged it or reduced its reliability. Even if you got one of the faulty CH341A with 5V instead of 3.3V, it's possible to hardware mod it like https://www.chucknemeth.com/usb-devices/ch341a/3v-ch341a-mod to make it 3.3V. In my opinion RPi is less secure than a simple tool like CH341A - so even if you got the BIOS flashing working with RPi, repeating your success with CH341A is still a worthy goal.
You need to press the ESCape key to open the SeaBIOS boot menu, not DELete. On Sat, Jan 23, 2021 at 7:56 PM magiccat1--- via coreboot <coreboot@coreboot.org> wrote: > > Hi Mike, > > Thank you so much for your help, > > I found out why Ch341a did not work. It is outputting 5 V, when I replaced > that with 3.3 V from Raspberry pi, everything works. Raspberry pi is a good > flashing tool. > > Then I have seabios working. I am total new to Seabios, when I put in a USB > key and a SATA hard-drive, it always picks SATA hard-drive. When I press > delete key, there is no option to move to USB key. > > I am not sure how to use seabios to boot with USB storage. > > Thanks, > _______________________________________________ > coreboot mailing list -- coreboot@coreboot.org > To unsubscribe send an email to coreboot-le...@coreboot.org -- Best regards, Mike Banon Open Source Community Manager of 3mdeb - https://3mdeb.com/ _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-le...@coreboot.org
