I’m troubleshooting an ASUS ROG Strix B660-I Gaming WiFi motherboard and I’m a bit stuck at the BIOS level. What I’ve tried so far

• Attempted to flash the BIOS using the USB BIOS FlashBack (Q-Flash) port with a properly formatted FAT32 USB drive.
• BIOS file downloaded directly from the official ASUS support page.
• Followed the exact FlashBack procedure (correct port, renamed file, standby power only).

Issue:
The FlashBack LED does not blink at all — no activity whatsoever. Further investigation


Because FlashBack didn’t work, I:

• Removed the BIOS SPI IC from

...

Hello,

I have spent the last hour on this and I guess this is just over my head, so here I am.

I have an ASUS TUF GAMING Z790-PLUS WIFI motherboard here that needs to have the BIOS updated in order to accept the latest CPUs.

The BIOS chips seem to come as a set of two: GD25B64ESIG and GD25B128ESIG. My guess is one of them is a fail-safe for the main BIOS? I really don't know. Or one of them is ME and other is BIOS? I don't know.

Anyway, I took dumps of both chips and then downloaded the latest update for this motherboard from ASUS's website...

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