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

...

With ASUS, not everything is quite so simple. I will show you my way. It may be longer or harder but it is the right way to do it in my humble opinion.

For example, you can have 3 similar ASUS motherboards, all being the same model, all of which will have different BIOS versions.

I will give you an example and my version of preparing BIOS from ASUS website and in the process I am always cleaning Intel ME while doing it so you have fully cleaned BIOS, no DMI data, no password, nothing.

This is the picture of 3 similar ASUS motherboards, all of them being X555LD...

Hello everyone,

I recently bought a non-working Asus Zenbook Pro Duo OLED UX8402ZA that was listed for parts only. The seller mentioned that it had no display output but that the charging lights worked.

When the laptop arrived (without a charger and SSD), I connected a charger and confirmed with a multimeter that it was charging the battery. However, when I tried to power it on, only the backlight of the secondary display came on. There was no image, and it didn’t boot into the BIOS.

I decided to try flashing a new BIOS, but since I didn’t want to desolder...

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...

Asus laptop G614JZ-N3012W Rog Strix with i7

Mainboard G634J-PMV-VGT
6050A3441302-MB-A01
2023-02-10

Power button works okay....power light goes on
Red "bottom" leds go on
Charging led works

Fans do not spin, capslock key does nothing, screen stays black

I would like to program the bios again, to rule out a corrupted bios.
However I run into a size error

The bios chip is a Winbond 25R256JVEN
Used my Xgecu T-48 to read the bioschip (using select chip as type XM25QH256B @WSON8, read somewhere...