Clear BIOS Asus Rog G531GU

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revolt

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Hello! Hi, I dumped my password protected BIOS. I flashed a new BIOS from this site (https://www.alexlaptoprepair.com/forums/threads/asus-rog-g531gu-g531gw-1-6-bios-dump.3918/), and everything works fine. I don't see the Mac address and PC serial number available on the BIOS screen. I have these details, but I don't know how to enter them into the new BIOS. I'm attaching the original dump and the clean BIOS from this site.

I kindly ask if it is possible to remove the password from the original BIOS or update the clean BIOS with the PC serial number and the Mac address.
thank you !!
 

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Clear BIOS Asus Rog G531GU

Hello! Hi, I dumped my password protected BIOS. I flashed a new BIOS from this site (https://www.alexlaptoprepair.com/forums/threads/asus-rog-g531gu-g531gw-1-6-bios-dump.3918/), and everything works fine. I don't see the Mac address and PC serial number available on the BIOS screen. I have these details, but I don't know how to enter them into the new BIOS. I'm attaching the original dump and the clean BIOS from this site.

I kindly ask if it is possible to remove the password from the original BIOS or update the clean BIOS with the PC serial number and the Mac address.
thank you !!

MEC jTAG ADAPTER SUPPORT MULTI HEADER FOR DIFFERENT PROGRAMMER SUCCESSOR,SVOD,RT809XX,ETC

The MEC JTAG Adapter is designed to save you time by allowing easy and fast access to MEC KBC I/O. It supports multiple headers and is compatible with SUCCESSOR, SVOD,RT809XX and UNIVERSAL programmers.


mec1663,mec5085,mec5075,mec1609,mec1619,mec1618,mec1633,mec5085,mec55,mec5045,mec5035,mec1663,mec1650
MEC JTAG Adapter
The MEC JTAG Adapter is built to streamline your work with MEC KBC I/O like , providing quick and convenient access while saving valuable time. It supports multiple header types and is fully compatible with programmers such as SUCCESSOR, SVOD, RT809XX, and more.
This adapter includes all the essential JTAG pins—TMS, TDI, TCLK, RST, GND, and 3.3V—allowing you to power the latest MEC chips directly from your programmer, eliminating the need to connect an external power adapter to the motherboard.
It also features breakout points connected to some resistors places allow you to pull-up or pull-down for key signals like MSDATA, nFWP, and RESET, which are useful in scenarios where enabling or disabling write protection or other features is necessary. These breakouts make it easy to adapt the configuration depending on your specific use case.
The MEC JTAG Adapter comes complete with the required headers for soldering (based on your programmer), a connector, and JTAG wires.


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This compact USB‑C tester plugs directly into a port to probe every signal line, using the internal ESD protection diodes of connected TYPE-C ICs OR PD CONTROLLER. You can directly check the USB-C Port and all lines connecting to the Type-C chip directly or PD chip , and also know what protocol is activated on this input.
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D+, D- (A6, A7, B6, B7): USB 2.0 differential pairs – always connected regardless of plug orientation.
TX/RX pairs (A2/A3/A10/A11 and B2/B3/B10/B11): SuperSpeed signals for:
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Sideband / Auxiliary
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USB Debug Accessory Mode (UART)


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HS detected, SBU absent → Likely USB‑3.x only.
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SBU only → Debug or audio path present, but no USB‑3.x.


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Do processor circuit ICs (VRM) really have passwords?
Do you remember the video where I explained how to program modern processor circuit ICs using a PMBUS programmer? I mentioned at the time that in some cases, we would need the schematic, because even though there are many dump files available now, for some models it’s not possible to backup the file from another board because the ic is protected.

This is because some modern processor VRM ICs support a feature called PMBUS Protect. This feature allows the manufacturer to set a password to protect the IC. It provides three levels of protection:
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  2. Protection from writing to the registers
  3. Protection from both reading and writing to the registers
For the first and third types, it's not possible to take a backup from the IC—even if you have a working board with the same model. In this case, you’ll need the schematic to manually build a configuration that suits the processor circuit and its components.

As for the second type, you can still take a backup and write it to a new or used VRM IC later without any issues.

Are there any ways to break this protection? No.

Are there any workarounds to bypass it? No.

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