I will read and reprogram the BIOS chip externally. I decided to go another way, at deeper level: hardware, BIOS chip programming. That means I must install Plop Boot Manger on SSD MBR, which now is set to be GPT UEFI.Īnyway, i have tried many other BIOS programs and do not help I am stuck in the same point. Anew version is under development, but is not ready yet.

That’s I hoped Plop Boot Manager can jump over it, but now I have doubts will work.Īs it is now, the Plop Boot Manager does not support USB boot or USB drivers for keyboard. If I make the boot GPT then I get the error from BIOS saying it must be MBR. The thing is, as the situation is now, I can boot from USB, but only MBR not GPT and Win10 or Win8 live CD on USB stick can boot MBR, but is somehow blocked. Then, if I manage to boot using Plop Boot Manger, I am not so sure I can start Win10 live from USB stick, I started to have some doubts. But that’s I only theoretically, I did not arrived there. cfg setting to use Timeout and select automatically an option, then maybe can start. exe from here: īesides that, I could not find easy a way to have a USB stick bootable in DOS which can load automatically the USB drivers for keyboard and mouse, so I can test it fast and easy.Ģ) If I manage to install Plop Boot Manager, there is still a problem: in the menu of Plop Boot Manager a selection must be made and requires a keyboard.

It needs Windows, otherwise cannot work that. exe update of the BIOS that I have is Win10 32bit and therefore cannot run in DOS. Once I can do that, then I can even try a Win10 live OS on USB and then I can update/re-flash the BIOS within Win OS.ġ) Even if I manage somehow to get the DOS load the USB drivers for keyboard and mouse automatically, the.

My point is to try with Linux Live OS as Ubuntu on stick to install Plop Boot Manager on SSD and then to boot GPT UEFI again. Now, when I boot from USB stick it does not let me any OS as Win7, Win8 or Win10, it says I must make the USB boot live OS with MBR and then it boots and is tuck there. The problem is that initially I had BIOS set in GPT UEFI for my SSD with Win 8.1 and right after the problem manifested I changed it to MBR legacy and then I could not enter in BIOS anymore. exe file and see if it runs and can update/re-flash the BIOS from DOS.Ģ) Plop Boot Manager – I forgot about this one, but I use it in the past: īasically it jumps over the BIOS boot type. If I can get that, then I will try to use the Win10 32bit BIOS. 1) To use a Live CD/DVD on USB with MS-DOS or Free DOS which is setup in such way that has and loads USB keyboard + USB mouse drivers.

How to update vaio sony laptop bios