Tutorial Dofreality P3 boards not detected

Hi everyone, I need you to solve a problem. I've had a Dofreality P3 platform for a few months. It hasn't been working well for a few months and suddenly the control board is no longer detected by my PC. I think it's damaged. I also tried it on a new PC and it gives me the same problem. I was following this project so that I can get my hands on the code in the future. Today I contacted dofreality support several times to resolve the problem but I was spending a lot of time and the platform is down. I wanted to ask who can help me transition to open source code to get back to using the platform? I have both Simtools and simracingstudio licenses. I have excellent knowledge of both mechanics and electronics, I know Arduino well, hey the various boards have also been developed, someone can help me even for a fee. Anyone who wants can contact me too.

I would imagine you have the STM blackpill version, just swap the chip out and I or DOF support can send you the files to reflash

Thanks for the replies, I'll try to explain better.
Yes, the elegoo tab is not seen on noorbeast device management.

So I think the problem is the device, I have an Arduino Uno R3 that I could experiment with to load the firmware but I don't have the dofreality firmware that's why I wrote here.

I had written in the previous discussion group to completely change the firmware with an open-source one, as long as it works on the platform I own.

I have electronic and mechanical design experience so I can do a bit of everything.
In the meantime, thanks for the support.
Roberto

To bring this to a close: Replaced his board, found his monitor causing tons of EMI