Z270X Gaming SOC bios Flashback

[darkgregor]

Hi

 

i'm under F2 bios on both bios on the board and i want to dowgrade to 8xe .

 

anyone have a solution ?

 

Q-flash won't flash due i have the last bios same with @bios under windows .

 

Best regards Darkgregor .

[darkgregor]

Update Flashback bios Z270X Gaming SOC Solved

Thanks to Sofoklis Oikonomou for your support and many others who helping me

Thanks to Gigabyte for your motherboard .

Make usb bootable key , copy efiflash + "biosname".bin + autorun.bat ( efiflash "biosname".bin \Nold ) .

boot from the usb

type autorun.bat

" Et voilà " bios downgrade .

[subaruwrc]

or my method with z170x soc force.

1. start flashing some bios then shutdown rig during update.

2. use fat32 usb2.0 usb key with wanted bios file renamed to GIGABYTE.bin,then insert it into usb flashback port ( dont know if z270 soc has one )

3. press and hold bios flashback button until board finds and starts to reflash the ROM.

4. bios switches should be in single bios mode or the board will start to reflash from,or simply change to backup bios chip.

[darkgregor]

there's no flashback port and flashback switch on the Z270X Gaming SOC

[subaruwrc]

there's no flashback port and flashback switch on the Z270X Gaming SOC

 

that is sad

[darkgregor]

Yep no flashback port no flashback switch no safe bios switch BUT that's a very good board

[noliso]

Update Flashback bios Z270X Gaming SOC Solved

Thanks to Sofoklis Oikonomou for your support and many others who helping me

Thanks to Gigabyte for your motherboard .

Make usb bootable key , copy efiflash + "biosname".bin + autorun.bat ( efiflash "biosname".bin \Nold ) .

boot from the usb

type autorun.bat

" Et voilà " bios downgrade .

 

 

 

Hi, I try to flashback bios of Z270N Gaming 5 but get the error message Invalid command. Are you using a special version of efiflash?

[sofos1990]

Hi, I try to flashback bios of Z270N Gaming 5 but get the error message Invalid command. Are you using a special version of efiflash?

 

Use this efiflash.

https://www.dropbox.com/s/t88rjmrb7r6a6ag/Efiflash.rar?dl=0

The command is "efiflash BIOS.bin \NoId

Keep "BIOS" name below 8 characters.

[noliso]

It's working [emoji3]thanks

[P5ych0]

Hi Guys, can anyone share BIOS X8E for z270n Gaming 5 please ?

[noliso]

Z270NGaming5

[P5ych0]

Thanks noliso 😊

 

Gesendet von meinem F8331 mit Tapatalk

[P5ych0]

BIOS downgrade confirmed X8E is working.

[kimandsally]

Been trying to downgrade to X8 file BIOS but keep getting error Not able to read BIOS file successfully.

 

Any idea's?

[noliso]

Been trying to downgrade to X8 file BIOS but keep getting error Not able to read BIOS file successfully.

 

 

 

Any idea's?

 

 

 

Maybe your bios file name is to long, keep it below 8 characters

[kimandsally]

Maybe your bios file name is to long, keep it below 8 characters

 

Sorted it found if I took off the .BIN it works fine.