Mindwind
Please tell me can I flash my motherboard in the city, in unofficial service. The guarantee does not fly off?

What??? Your English translation is really wierd in what phrasing was used.

If you are trying to ask if flashing the motherboard BIOS won't break the motherboard, it won't as long as 1) you are flashing the correct BIOS for YOUR model, and 2) you don't power down the computer while it is flashing.

On a completely separate and unrelated note, on my X99 Classified with the latest BIOS (2.01 iirc), I suddenly started getting k-mode exception and page fault BSODS. I went into my BIOS to raise the voltages but saw that my first RAM channel was reading 1.2V when it should be 1.35 and it was showing as being set to 1.35V! Long story short, it took me clearing the CMOS completely to get it to actually read 1.35V when I set 1.35V. No clue why the board decided to do this...

You don't need to send the MB back to the US from Russia if it needs to be flashed.  Most do it themselves.  If you have the MB and needs updated BIOS, you could flash it there if you're familiar with doing so.  Its fairly easy but you can have someone experienced to do it for you if you'd like. 

I'm going based off of no sleep and my own brain trying to translate with what he meant.  Gasp!