Beagle Bone not powering on.

As soon as I connect my BBB only 3 of the 4 led’s are lightning up. I was working with minicom before this suddenly I got a timed out message from putty. I keep hearing the sound from windows when a device is plugged and unplugged I repeated this process in different systems still the same result

can someone tell me what’s wrong?

You need to connect a serial console cable to the BBB to view the kernel boot messages.

Without that you will probably just have to reflash the BBB.

I will try the serial console cable, I tried to reflash (hold down S2, remove power & connect it again ) but it didnt work.

I have no idea what could be wrong, I was just working with minicom.