darkgregor Posted March 26, 2017 Share Posted March 26, 2017 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 . Quote Link to comment Share on other sites More sharing options...
darkgregor Posted March 30, 2017 Author Share Posted March 30, 2017 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 . Quote Link to comment Share on other sites More sharing options...
subaruwrc Posted April 1, 2017 Share Posted April 1, 2017 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. Quote Link to comment Share on other sites More sharing options...
darkgregor Posted April 2, 2017 Author Share Posted April 2, 2017 there's no flashback port and flashback switch on the Z270X Gaming SOC Quote Link to comment Share on other sites More sharing options...
subaruwrc Posted April 2, 2017 Share Posted April 2, 2017 there's no flashback port and flashback switch on the Z270X Gaming SOC that is sad Quote Link to comment Share on other sites More sharing options...
darkgregor Posted April 2, 2017 Author Share Posted April 2, 2017 Yep no flashback port no flashback switch no safe bios switch BUT that's a very good board Quote Link to comment Share on other sites More sharing options...
noliso Posted April 4, 2017 Share Posted April 4, 2017 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? Quote Link to comment Share on other sites More sharing options...
sofos1990 Posted April 5, 2017 Share Posted April 5, 2017 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. Quote Link to comment Share on other sites More sharing options...
noliso Posted April 5, 2017 Share Posted April 5, 2017 It's working [emoji3]thanks Quote Link to comment Share on other sites More sharing options...
P5ych0 Posted July 14, 2017 Share Posted July 14, 2017 Hi Guys, can anyone share BIOS X8E for z270n Gaming 5 please ? Quote Link to comment Share on other sites More sharing options...
noliso Posted July 14, 2017 Share Posted July 14, 2017 Z270NGaming5 Quote Link to comment Share on other sites More sharing options...
P5ych0 Posted July 14, 2017 Share Posted July 14, 2017 Thanks noliso 😊 Gesendet von meinem F8331 mit Tapatalk Quote Link to comment Share on other sites More sharing options...
P5ych0 Posted July 16, 2017 Share Posted July 16, 2017 BIOS downgrade confirmed X8E is working. Quote Link to comment Share on other sites More sharing options...
kimandsally Posted July 18, 2017 Share Posted July 18, 2017 Been trying to downgrade to X8 file BIOS but keep getting error Not able to read BIOS file successfully. Any idea's? Quote Link to comment Share on other sites More sharing options...
noliso Posted July 19, 2017 Share Posted July 19, 2017 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 Quote Link to comment Share on other sites More sharing options...
kimandsally Posted July 20, 2017 Share Posted July 20, 2017 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. Quote Link to comment Share on other sites More sharing options...
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