breadcrumb in sub site

Hello, 

I would like to insert breadcrumb when I navigate in to the sub site.

I've tried:

A)this in V4.master: https://sharepoint.stackexchange.com/questions/11480/breadcrumb-not-showing-parent-site (doesn't work)

B)https://social.technet.microsoft.com/Forums/SharePoint/en-US/15b5fa4a-7a8a-47b3-947b-ef430468fd16/sharepoint-2013-subsite-breadcrumb-not-showing?forum=sharepointcustomization

(doesn't work)

Please answer me,

Thank you

Shozo Lojacono