Asus ROG Strix G18 (2023) G814JV bios downgrade error

[Zalevskiy]

How can I now rollback the BIOS to version 313? After updating MyASUS to 331 I tried using EzFlash to rollback to any other than 331 (313-330) I see an error

Selected file is not a proper BIOS
Before the update, I could downgrade the BIOS to any version from the Asus website without any problems.

The problem is not in the flash drive, because 331 is flashed back to 331. also tried to downgrade via WinFlash /nodate but after rebooting EzFlash and again Selected file is not a proper BIOS

Factory Windows Home 22H2 v2.05 with ISST 2022 drivers sounds great quality only 313 bios version. By the way, this was the most stable bios, new 331 for 85-90 degrees celsius with undervolting. 313 temperatures 70-80 degrees celsius with undervolting.

I guess BIOS version 313 uses more voltage for HD Audio. Even when loading boot ROG logo sounds more detailed and nicer than 317-331 bios. And in combination with ISST 2022 + Realtek 2022 the sound is transformed into premium quality, all other BIOS make muffled sounds, high frequency detail is lost. If the problem is the new 12B microcode, should I expect a re-upload of 313 along with the 12B added to it, or have all previous BIOS versions turned into a pumpkin forever?

Thanks.

ASUS ROG Strix G18 G814JV-N5042
RAM / SODIMM Samsung [M425R4GA3BB0-CQK] 32GB + 32GB (total 64GB)

[Zalevskiy]

Having studied the firmware files in detail, I found “ASEX block firmware and ASIO block” in them, I have no idea what it is, but intuitively it could be something similar to viruses or financial crypto services being imposed on me. This is the official firmware file from the ASUS website, I have questions for the bios developers, what is it and why do I need it? If these are consequences of your microcodes, I have a lot of questions. Did I voluntarily make my laptop full of holes for hackers? Did you need 12B for this?

After 12B, strange things started happening, for example, my simplewall was recording the incoming ip, the search for which led me to this article:
https://blog.csdn.net/weixin_54960362/article/details/134709052

[eXplode]

Make new post whit this it will be better for everyone to see it what ASUS do only for one microcode....

[Bilge1212]

I'm genuinely worried about my safety now, this must be some joke. ASUS come here and explain about this, maybe? After having a forced update to my bios which has lots of questionable things in it doesn't look very good customer experience.

[garnett215]

CES is almost upon us and I'm ready to move on.

I have the system freezes somewhat under control. I disabled the BIOS level undervolt. I'm currently using Intel XTU with -85 on all of the settings that matter. The only freeze I've suffered is from being too aggressive with the undervolt. It's possible the new mico code doesn't play nice with BIOS edits.

[Zalevskiy]

The supposed reason why undervolting changed, before bios 313-318 regulated Core Voltage Offset, and subsequent bios began to regulate P-core Voltage Offset

In theory, you can change P-core > Core through a custom BIOS, but I’m not ready for such experiments, I was quite happy with the settings of the original 313. In any case, you can’t do without a programmer (disappointed). At the moment I have not been able to find a dump of the G814JV (2023) date before update 331.

And as for why they worsened the sound volume in the new BIOS, judging by the RU language forum, at least 3 G16 owners had typical sound-related problems, the volume of one of the speakers was blocked. Maybe the audio chip was different from the G18 models and through sound deterioration they reduced the power consumption of both models, I don’t know what happened in reality, there are some common patterns of cause and effect relationships.

[Bilge1212]

As of today i'm no longer considering BIOS update as the source of my instability issues, after going through a few facts i have in hand i'm definitely going to send my device in for service, this screams Intel excessive voltage degradation/damage and instability issues caused by this from every angle of it. Same error codes, same error messages, same symptoms of 13th-14th gen intel cpus and same problems everywhere. Some of the cores has to be damaged and i'll find it, backup my claim with evidence then send it in, we'll see how it goes from there. I'm sure my instability will be fixed as soon as i disable damaged core(s) as others did and solved their crashes. I'll try to RMA as soon as possible but it already looks like a long battle with ASUS is on the way... (Although BIOS updates still suck with the limitations etc., i'm sure i used to be able to configure some things last year but now i can't even access them.)

Good luck to you with your devices, hope you can find a solution soon.

Edit/Update: Underclocking my CPU a bit fixed all the issues i've been having, no crash ever since. Use Intel XTU and reduce P-Core multiplier by a few points, however you'd like to use it just make sure it's stable. I'm %100 sure my 13980HX is an affected processor and i'll RMA it soon, just need to use it for a few weeks more and this solution already does everything for me lol. I don't understand/know if it's the cores or other parts in my chip, i don't want to make claims without proper knowledge about them but it's damaged for sure, it can't handle operating at default settings. Base is 52x for P-Cores, i'm using it around 48x and it's the most stable thing ever. I hope it works for you other HX or similar CPU users as well.

[delinquent_null]

I have the G814JZ; right after I did battery replacement my DDR5 Rip jaws ram won't boot it only boots on single stick of stock 4800 cheap Samsung ram, great job not allowing us downgrade first of all always warn your customers what is in the bios and if a bios can not be downgraded tell us. We don't care about this vulnerability that never see real actions. Stop it, this is so wrong I'm only running on 1 stick of 8gb ram now thanks.

[Zalevskiy]

Interesting... there is a repair video on YouTube for the G814JZ https://www.youtube.com/watch?v=7AWefVnMir8 (use subtitles for translation) and it has exactly the same problem: 1 RAM slot burned out. If this was caused by the bios update, then I will never update the bios in the future, this is the most disgusting way to increase laptop sales.

[delinquent_null]

Hope not, I have 5600mhz ram this was a battle on few previous battle. The board only supports up to 5200mhz by bios.  If it was ram slot fault I should not be able to still use 64GB when bios is on 331 2x32

[delinquent_null]

I have solved the issue. Make sure to use one stick, boot into BIOS, turn off the virtual machine, and set undervolting back to default so the memory can be retrained. The BIOS on an Asus laptop is not like a desktop motherboard; after a BIOS upgrade, it does not reset all your values to defaults.