Прошивка BIOS на Asrock a320M-HDV R4.0⁠⁠

Копи-паст с реддита. Писали что помогло.

Еще писали пробовать флешки меньших размеров (меньше 16 ГБ).

Here's a copy paste of the guide for Windows 10

Download the portable version of the latest Rufus release: https://rufus.ie/ (for W7 and W8) (for W10 download this one https://1drv.ms/u/s!Ag6oE4SOsCmDhXE_kUI1LFf0NB8O also download the diskcopy.dll and put it in Window\System32 https://www.winpcware.com/file/10546/diskcopy-dll )

Connect a USB stick to the computer and launch Rufus.

Select the correct device from the "device" drop-down menu (the USB-stick) and select MS-DOS from the "Boot selection" drop-down menu.

Click start and wait the process to complete.

Extract the two .exe files found in FRZN.zip archive to the root of the USB stick. (FRZN.zip - Flashrom 1.1 with Ryzen support https://1drv.ms/u/s!Ag6oE4SOsCmDhiuVxoHnL_18Sf1Z )

Reboot the system and enter the bios. Under "Boot" tab make sure that CSM is enabled (if not, enable & save). Select the correct USB device from the boot override section (NOTE: NOT the one beginning with "UEFI:").

After the system has loaded DOS, you can type in "flashrom -p internal" command to check if the SPI controller and the flash part itself is being detected properly.

Note: DOS requires the filenames to meet the 8.3 naming format. This means that the filename "xxxx." cannot be longer than 8 characters, and that the suffix ".xxx" cannot be longer than three characters.

The program will state: "Found xxx flash chip "xxx" (xxx kB, SPI) mapped at physical address 0xfe000000" if the flash is detected.

Typically you do dir first, before you even try any command

to know what you have to type, as there is no TAB Autocomplete sadly :) https://imgur.com/Oem3dJg

flashrom -p internal -r BACKUP.BIN Should be used in the first place Not only do you backup NVRAM, GUID, Board Serial & current Presets But you also Test if your Flashchip can be read, before going the vague way of erasing and trying to write to it Overall always do it the first time when you try it on a new board :thumb: Keep your filenames at 8 digits max :) We don't have TAB Support and you don't want guessing your filename MS-DOS does support random USB removable, if you ever worry about your stick dying midflash / or you messed up your names and want to correct But dont't count on it to reinitialise, as the files are preloaded into RAM

flashrom -p internal -w filename.bin (replace filename.bin with your bios filename, for me it was X370GK47.03) This command Erases & Writes your bios (be it whatever extension) to your board https://imgur.com/KTE8yTe The flashing process all-together takes about 5-15min The erasing progress for 16mb chips about 90sec

IF something Fails, let's say the stick dies mid flash and it errors out

DO NOT cut power to the system :exclamati Be sure to keep it running as long as you can, because it is able to support hotplug and the community can help you re-flash it from a 2nd USB (in case your bios file was messed up and you need to correct something or it exceeds flash size) Overall, keep it running and seek for help :exclamati The Flashrom Page has an IIRC chat, OCN is here

just never turn off a system after erased but failed flash ;)

Flashing Manual <－ because -h page in ms-dos is not scroll-able :D At the end, cold boot your system (PSU off) often it can happen that even after SPI flash, the bios was preloaded

soo cutting power is recommended :)