I need help! Arduino UNO may be broken?

This morning I accidentally supplied 12v to the Arduino when I was connecting it, and for a split second I saw fire in the circled area in the picture below, I immediately unplugged it and could smell the burning smell in the air. I feel it may be broken, this chip looks burnt.
I would like to ask if this whole Arduino UNO board is scrapped? Is it possible to simply replace the burnt chip?
I urgently need help, I need to use Arduino for my project afterward.


power it up over USB cable and you will know
i think it is 3.3V regulator explode

You might get away with USB power, or 5V dc direct to the 5V pins…

IIRC, 3V3 is derived from the 5V line (after the regulator)..

Where did you put the 12V in ?

Here's the thing, I've been connected to 3.3V before, powered through the computer. This time I may not be too sober, directly connected to the power supply, which is a 12v power supply, may have caused this tragedy.
Thank you for the big picture so I understand what the problem is, so can I ask if I can replace this part or I can only get a new board?

I've been connected to 3.3V before, powered through the computer. This time I may not be too sober, directly connected to the power supply, which is a 12v power supply.

cause this chip a short connection? if not - you can leave it so. Uno does not need 3.3V for his work. and yes it is replaceble, but if you asking then you can't do this.

What do you mean?
I can't change this part, can I?

yes. correct. you are not able to change this chip. that is i said. sorry for my bad English.

Pushing 12V into the 3v3 pin is almost guaranteed to screw almost everything on the board.

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You could change the IC if you have the right skills and equipment but if you have to ask I suspect that you have neither