Hi everyone!
I really need some help with flashing bios on my tablet. Every 30 minutes exactly the tablet cuts the power. This problem has been reported but some people with the same tablet pointing to a bad firmware update.
I found a topic here where someone has managed to flash the bios on surface pro 2 and got rid of the problem:
Yoga 2 Pro shutdowns every 30 minutes (6)
I tried to use the same procedure but i got stucked.
fptw64-d spi.bin command from the Intel ME System Tools v9.0 r1 package gives me the error „fptw64.exe cannot be run on the current platform”. Currently I have win 8.1 64bit
I tried other versions of „Intel ME System Tools” but i got the same error. I think the error is because i don’t have „intel management engine interface”. I also tried to install other versions of intel management engine interface but none of them were for my platform.
I also looked for a device in device manager named “intel management engine interface” but I didn’t found anything. I only have “Microsoft system management BIOS driver”.
I tried the tools on win 10 and on win 8.1, same errors, no luck.
So if anyone has any suggestion, please help. I would really appreciate, thank you!

Thank you @plutomaniac but there's no go for me...
I can not use any of the tools you indicated because i have a big problem, "intel management engine interface" is missing from my tablet. I discovered that by reinstalling the original image of the windows (downloaded from Microsoft).
When i have downloaded the image i also found that, in fact, my tablet is Surface pro 1 (2013), not surface pro 2.

After i have installed the image (windows 8 pro) i went to device manager and found "intel management engine interface" grayed out, with the error "device disconnected, please reconnect the device.
I tried to update the drivers with the original ones from MS and i tried to install the 9.5 package but nothing worked.
So i am in an impossible situation, i can not use the tools to fix the bios without "intel management engine interface".
Thank you!

Some good news!
I managed to extract the spi.bin, i have followed the guide for "cleaning the dump" and i have obtained the outimage.bin
In the end i got stucked to the fpt -f outimage.bin when i have received an error about write access. I tried to follow the guide for read/write access but i got lost.

I have attached the original dump, "spi.bin" and the cleaned one "outimage.bin"
https://drive.google.com/open?id=1sVvUmB...bkoi6E6yj7nXISg

For the first time i have hopes that will get rid of the 30 minutes problem.
Thank you!

Just a direction please for the write access of the ME region...
The enabling is done inside the outimage.bin with a hex editor, modifying different values like "Me FW Image Re-Flash", "ME/TXE Disable" e.t.c."?
Thank you!

I found these 3 entries and i have updated the corresponded settings with the efi shell
Setting: Me FW Image Re-Flash, Variable: 0x242 0x1
Setting: BIOS Lock, Variable: 0x49 0x0
Setting: BIOS Interface Lock, Variable: 0x4B 0x0

No luck, bios still not writable.

I tried with the Grub efi and with the AMISetupWriter utility. After reboot the BIOS Lock, VarStore stays the same 0x1 (enabled). I have checked by running the commands again after the reboot to get the current state of the variables
In the grub efi i have no error. In the AMI efi i have an error offset is out of range.
I have attached: bios cleaned file, setup_extr.txt, and two images with the efi commands.
https://drive.google.com/open?id=1sVvUmB...bkoi6E6yj7nXISg
Thank you!

Don't reboot, control alt del after the setting is changed in grub, and you need to set 0x0 (If you were not already, unsure since you have 0x1 written above). If you need, later I can modify actual BIOS for you to reflash, with the setting enabled by default, then you can flash ME without messing around.

I did amisetupwriter 0x49 0x0
then control alt del
rebooted into efi shell
fpt - f outimage.bin
and the error 280... again
From what i notice, no matter if i press control alt del, or i type exit, or i press the power button, after restart the variable is back to 0x1 (enabled).
I would appreciate if you will look into actual BIOS but i have to get over the write protection first. And i have used all the "software" options.
If it was a regular computer it wolud be easy to buy and use the programmer but beeing a microsoft tablet it is a pain in the a.. to take it apart.
Thank you!

First of all, I want to thank to all the cool and wise guys that helped me. @plutomaniac, @Lost_N_BIOS thank you! You are cool, you are wise!
Now, back to my problem…It frickin' woooooorked! I have now a full working bios on my surface pro 1.
@plutomaniac you gave me the entire solution in your first post. I just had to flash the ME region and my mistake was that I was trying to flash the entire BIOS. So I have used the AMI shell and just flashed the ME region with the efi version of FPT. I didn’t even needed to unlock something.
The hardest part was to wait for the 30 minutes to see if the tablet is not powering off. I have opened up youtube and played Pink Floyd for 1 hour and it didn’t shut down, so this is a happy end.
Thank you again for not giving up on me and reminding me in the post above that the problem is with the ME region.

@Maleabil - Great you got it! For anyone else here in the future, the setting needed changed here if you have FPT ME re-write issues is this one as plutomaiac mentioned above (Change to 0x1) >> Me FW Image Re-Flash, Variable: 0x242 0x1
*Edited to correct setting ^^