Ender will not stop alarming

So I tried to upgrade the firmware. This is a used printer, and it quite frustrating. It has had the auto level upgrade. I have another Ender 3V2 that I am about to destroy for parts since it NEVER works right. Is there a way to stop it from alarming so that I can troubleshoot it?

beeping, with black screen
beeping with an error?

what situation you are.