Strange issue with my UNO

Hello,

I have a problem with one of my board UNO. I insert the 12V into the VIN of the card. At that moment, I saw the LEDs turn off for a short while. I immediately remove the current on the card at this time. Afterwards, I tried the card on the USB port, the LEDs were on but I no longer saw the driver in the IDE. I am no longer able to see on the software and I am no longer able to download my programs.
I tried another chip on the card with Blink and the led works fine. On the other hand, the chip of the defective board is not able to receive program on a new board.

Can i tried something for that ?

thank