AB350M-HDV R3.0 BIOS...

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   I do not understand your problem.
Lost internet flash? -> Useless feature and even too dangerous
Lost sapphire logo? -> Just at boot time, so what is so important?
Any other, real problems?

But for your wish to downgrade the bios:

There is a way for a downgrade of the bios with the Asrock windows flash tool.
Watch this video (it is for another AM4 board, but just for understanding the procedure it doesn't matter):
https://www.youtube.com/watch?v=ybj3XkteX9k&feature=youtu.be

Without guarantee:
The flash tool can update/downgrade several boards and must be configured
- with changes in the ini file for your board and current bios version
- and with the bios image you want to downgrade

Folder structure:

\AfuWin
\ROM
\ROM\ASRock.ROM <- must be replaced with the destination bios image
ASROM.exe
ASROM.ini

Ini File:

[ROM]
Path=ROM
File=ASRock.ROM

[AB350M-HDV]
BiosVersion=P3.30

The tool, here for X470_Gaming K4:
http://asrock.pc.cdn.bitgravity.com/BIOS/AM4/X470%20Gaming%20K4(1.90)WIN.zip

Do you dare to proceed this adventure way?

If not, contact Asrock support or the user JZ (or _JZ) or here https://www.jzelectronic.de/jz2/index.php

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Ray62 Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 01 Jul 2018 Location: Germany, Berlin Status: Offline Points: 706	Post Options Post Reply Quote Ray62 Report Post Thanks(0) Quote Reply Topic: AB350M-HDV R3.0 BIOS... Posted: 25 Aug 2019 at 11:15pm
	I do not understand your problem. Lost internet flash? -> Useless feature and even too dangerous Lost sapphire logo? -> Just at boot time, so what is so important? Any other, real problems? But for your wish to downgrade the bios: There is a way for a downgrade of the bios with the Asrock windows flash tool. Watch this video (it is for another AM4 board, but just for understanding the procedure it doesn't matter): https://www.youtube.com/watch?v=ybj3XkteX9k&feature=youtu.be Without guarantee: The flash tool can update/downgrade several boards and must be configured - with changes in the ini file for your board and current bios version - and with the bios image you want to downgrade Folder structure: \AfuWin \ROM \ROM\ASRock.ROM <- must be replaced with the destination bios image ASROM.exe ASROM.ini Ini File: [ROM] Path=ROM File=ASRock.ROM [AB350M-HDV] BiosVersion=P3.30 The tool, here for X470_Gaming K4: http://asrock.pc.cdn.bitgravity.com/BIOS/AM4/X470%20Gaming%20K4(1.90)WIN.zip Do you dare to proceed this adventure way? If not, contact Asrock support or the user JZ (or _JZ) or here https://www.jzelectronic.de/jz2/index.php
	Asrock Fatal1ty X370 Professional Gaming Offline Under test: MSI X570_MEG_ACE \| AMD Ryzen 9 3900X \| Scythe Mugen5 \| 2x16GB F4-3200C14D-32GTZ@3466 \| ASUS GeForce GTX 1080 Ti FE

tkvaisanen Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 13 Aug 2019 Status: Offline Points: 4	Post Options Post Reply Quote tkvaisanen Report Post Thanks(0) Quote Reply Posted: 25 Aug 2019 at 3:37pm
	I really need help with this. Been searching around the net, but couldn't find nothing... Am I really stuck with this new BIOS or is there some workaround that I could use?

tkvaisanen Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 13 Aug 2019 Status: Offline Points: 4	Post Options Post Reply Quote tkvaisanen Report Post Thanks(0) Quote Reply Posted: 13 Aug 2019 at 7:37am
	I upgraded my bios to latest one... I know now, I shouldn't have done that. Is there anyway to downgrade my BIOS to 1.70? I lost Internet flash option in bios and Asrock Post screen doesn't show my sapphire logo anymore.