Is there any way to fix this? What is broken? What other information do you need?
I think it's just a case that all your stuff is drawing more then the 500ma current limit when using USB power.Note that unlike most arduino boards there is no 500ma thermofuse to protect the PC's USB port from excessive current draw, so beware how much current your nano based project requires and keep it under the 500ma USB limit, or power the nano and/or extra stuff from an external voltage source.Lefty
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