My passport for mac 1TB Silver EMEA

The problem i am having is my mac stopped recognising my( my passport) number WX41E72JT260 when I up dated my mac the my passport has failed diagnostic tests and will not up date, can you please Help, james8

Hi james8,

Maybe you should try contacting WD’s Technical Support about this.

To Contact WD for Technical Support

https://support.wdc.com/support/case.aspx?lang=en
The link below will allow you to call support.