Unregister Device after sold NAS

My Cloud OS 3 Personal & Network Attached Storage My Cloud EX2
1

Hello everyone! I sold my Mycloud WD EX2 nas and the buyer informs me that he cannot access the software as it DOES NOT MATCH THE WD RECORDS. How can I delete my record without having the device? Thanks for the help.

2

Hi,

You may refer to the following KBA: Error