X470 Gaming Plus Max BIOS corrupted

miguelmm19914d902ce

New member
Joined
Jun 19, 2021
Messages
2
Hi all,
So, as the tittle says, after updating the BIOS, once it was completed the PC had a black screen in the final boot. The mb shows CPU fail led (CPU works fine on another mb).
I already tried the CMOS button and jumpered the JBAT1. And I dont know if I can reflash it by USB.
The marketplace where I bought it says that the problem isn't included on warranty bc I cant prove I didn't anything wrong during the update.

The point is, can I reflash the BIOS with a USB flash Chip like the ch341a model? And if I can, which one is the bios chip?
 

miguelmm19914d902ce

New member
Joined
Jun 19, 2021
Messages
2
First of all, thanks for the answer.
I already tried to search the same problem on the forum, and the only way to solve the issue i didnt tried till yesterday was the blind flash you talk about on this post:
(1) BIOS update problem MSI X470 Gaming Plus MAX | MSI Global English Forum - Index
The flash drive didnt shine even once, and i tried it both with the mb alone, and with CPU, GPU, and only one RAM stick.
I tried to contact MSI by phone and mail, but on both times a machine answered me (on the mail the answer was scripted and told me to contact Amazon support. When i already told them on the message i didnt bought it there)
So now i dont know what to do, they already told me the warranty doesnt cover this failure but if i dont know which one is the bios chip i cant flash it manually wish a reflash flash drive
 

Alan J T

Well-known member
Joined
Sep 11, 2020
Messages
3,708
First of all, thanks for the answer.
I already tried to search the same problem on the forum, and the only way to solve the issue i didnt tried till yesterday was the blind flash you talk about on this post:
(1) BIOS update problem MSI X470 Gaming Plus MAX | MSI Global English Forum - Index
The flash drive didnt shine even once, and i tried it both with the mb alone, and with CPU, GPU, and only one RAM stick.
I tried to contact MSI by phone and mail, but on both times a machine answered me (on the mail the answer was scripted and told me to contact Amazon support. When i already told them on the message i didnt bought it there)
So now i dont know what to do, they already told me the warranty doesnt cover this failure but if i dont know which one is the bios chip i cant flash it manually wish a reflash flash drive

Blind flash will only work if the PC can pass post is mainly for corrupted display or not getting a display. WIthout the Bios Flashback on your board you have no option but to have the Bios Flashed via a chip writer like i n your first post But MSI should Replace the board and as it is the weekend they not at work Support is 9 to 5 Monday to Friday or give the MSI Discord server a try https://discord.gg/7vZmVMyR
 

darkhawk

Well-known member
Global Moderator
Joined
Nov 20, 2012
Messages
13,545
The point is, can I reflash the BIOS with a USB flash Chip like the ch341a model? And if I can, which one is the bios chip?
The CH341A doesn't support 1.8V EEPROM. So no. Even with Adapters, it won't work. I've tried it.
You'd need something a bit more expensive to do it properly. The CH341A is a cheap, simple solution for old hardware. which is why you can find those really cheap and easily.
 
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