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**BDMaster** · 03-18-2015, 10:20 AM

No try anyway to flash It !
Let me know
Regards

ctrlwifi · 03-18-2015, 10:53 AM

My current bios has eeprom write protected and spi lock enabled. Do you suggest try flashing it either way with the bios you provided?

Thanks.

ctrlwifi · (This post was last modified: 03-19-2015, 09:31 AM by ctrlwifi.)

Freedos from rufus does not allow my laptop to boot to usb. The laptop does not see the usb boot stick at all but recognized my windows 8 usb boot disk when I switched it out during bootup.

I tried the freedos usb boot on two different laptops and it works without a problem.

My Yoga will only boot to a usb if its pure UEFI which mean it must use an efi bootloader.

**BDMaster** · 03-19-2015, 02:15 PM

You have to unlock UEFI Legacy USB so set a Bios SVP (SuperVisor Password)
then Disable SecureBoot and set Legacy USB Boot !
Let me know
Regards

P.S. I will try to prepare an efi Bios Mod !

ctrlwifi · (This post was last modified: 03-19-2015, 02:41 PM by ctrlwifi.)

(03-19-2015, 02:15 PM)BDMaster Wrote: You have to unlock UEFI Legacy USB so set a Bios SVP (SuperVisor Password)
then Disable SecureBoot and set Legacy USB Boot !
Let me know
Regards

P.S. I will try to prepare an efi Bios Mod !

Thanks for the reply BD.

The BIOS does not have an option to support Legacy USB Boot or the option to unlock uefi legacy usb which I wish it did. I'm very sure of this. I tried freedos with secureboot disabled and fastboot disabled which it didn't do anything. I can try setting a bios supervisor password but wouldn't that just restrict access to certain features in the bios?

I will wait for your efi bios mod. Smile

Thanks again.

**BDMaster** · 03-19-2015, 04:46 PM

Ok prepare an USB Stick with UEFI Shell and then copy into the files from
this folder :

http://rghost.net/6BXjCtgPF

Boot into EFI Shell and run this comand :

fpt -f bios.bin -bios

Let me know
Regards

ctrlwifi · (This post was last modified: 03-19-2015, 08:35 PM by ctrlwifi.)

I was able to boot with an efi shell. When I did the fpt -f bios.bin -bios command, seem like it was reading the usb cause the light was blinking on the usb and then it did nothing.

Getting close Smile

ctrlwifi · 03-20-2015, 09:40 AM

The fpt.efi application is there in the shell. Could it might be executing the application with a different command?

ctrlwifi · 03-20-2015, 10:48 PM

BD, see link provided for error.

https://www.sendspace.com/file/gxbb3f

**BDMaster** · 03-21-2015, 04:13 AM

Ok It needs x64 efi version so try this one :

http://rghost.net/8vRygLC6l

Let me know
Regards

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