https://community.sony.no/t5/portable-audio/nwz-b172/m-p/1583797#M2226 <P>Hi once you are on the My Sony page you should be able to enter the details as follows.</P><P><IMG align="center" title="b.JPG" border="0" alt="b.JPG" src="https://community.sony.no/t5/image/serverpage/image-id/171539i7270FE8BB4A86425/image-size/original?v=mpbl-1&amp;px=-1" /></P><P>&nbsp;</P><P>The serial should be located on the rear of your walkman.</P> Mon, 31 Mar 2014 20:42:29 GMT Nobody-in-particular 2014-03-31T20:42:29Z https://community.sony.no/t5/portable-audio/nwz-b172/m-p/1583475#M2225 <P>I'm trying to register my new walkman.</P><P><SPAN>What series is a nwz-b172 and how do i find the serial no?</SPAN></P><P><SPAN>Thanks</SPAN></P><P><SPAN>Jan</SPAN></P> Mon, 31 Mar 2014 14:02:16 GMT https://community.sony.no/t5/portable-audio/nwz-b172/m-p/1583475#M2225 janlewis 2014-03-31T14:02:16Z https://community.sony.no/t5/portable-audio/nwz-b172/m-p/1583797#M2226 <P>Hi once you are on the My Sony page you should be able to enter the details as follows.</P><P><IMG align="center" title="b.JPG" border="0" alt="b.JPG" src="https://community.sony.no/t5/image/serverpage/image-id/171539i7270FE8BB4A86425/image-size/original?v=mpbl-1&amp;px=-1" /></P><P>&nbsp;</P><P>The serial should be located on the rear of your walkman.</P> Mon, 31 Mar 2014 20:42:29 GMT https://community.sony.no/t5/portable-audio/nwz-b172/m-p/1583797#M2226 Nobody-in-particular 2014-03-31T20:42:29Z