Please give some expert advice !!! (motherboard)

I'm not an expert at all, but i think i read something about damaged pins are very bad, maybe someone could replace the socket?

Basically paper-weight from other experiences I've seen. Repairing broken CPU pins on Motherboards is extremely hard, if not impossible, on CPUs it can be done, if its not extremely broken. Granted, the motherboard could still work if the pins are something like grounding pins, but from the way that you're saying it, there's no chance of it working. Best thing you can do is return it or get a replacement from the website you bought it on.

Well, someone can always try. :D
https://www.youtube.com/watch?v=O1H5_FVX9lU

You need to change CPU socket.
Otherwise, at least MoBo will not start. At the max, CPU will be damaged and take the near-socket space with it.

Or try method in Linus video for 1-3 pins.

Some manufacturers offers paid repair. So check with the store you bought it from if they can arrange it for you.
MSI should be able to offer paid repair, but can be a hassle with them regarding price.

If the store cant arrange it you shoud be able to create a ticket with MSI support directly.

If its brand new and damaged just return it?

if you aren't a repairman then I'm afraid there's no use in a damaged mobo for you. Though you could try to sell it to a local repair shop or on ebay.

I would try to return it and say the pins were broken when I opened it or try to get a replacement through warranty

Are the pins broken or just bent? If they are bent you can try and rebend them back in the correct shape by pushing them lightly with a toothpick or something, worked out for me. If they are missing completely you are out of luck but I did watch a youtube video where the pins were broken but not completely, just their heads were missing, the guy took it to a jeweller to solder the copper heads back on and that surpisingly worked.

Repairman can probably replace the whole socket. And if you don't want to pay for repairs for yourself - repairman can use this board as a donor of components to fix other motherboards (but unsure how much they will be willing to pay for it).

Not personal experience on the matter but from what I have heard, it is very difficult to fix those pins, but it's repairable usually. Try some local repair shop for a better opinion on the matter. They will also be able to assess the damage better than what most of us even with pics, and, well, they are the expert. afaik, subject to how damaged it it, most of them can be fixed, or the socket be replaced provided they have the replacement parts.