Says password reset might be required - there appears to be recovery articles on the net fwiw
Cisco Nexus N5K-C5020P-BF 40-Port 10Gb Switch w/ 2x 750W Power Supplies 882658211935 | eBay
Cisco Nexus N5K-C5020P-BF 40-Port 10Gb Switch w/ 2x 750W Power Supplies 882658211935 | eBay