Yes, I've disconnected all my connections. The project has to pump water through the motor. I think it was wet once but wiped quickly. Now the board is completely dry. I don't remember anything else I did wrong with my board. The only thing I did was replacing the ATMEGA of the board with the problem, with one with that of a new board. Then the board worked fine. It made me think that the problem is with the processor and not with the board. I had already lost an old model like this. But unlike the one mentioned, even the tx led is not blinking with that. But the board power on led is turning on.