I have issues with change language , cannot change language , the language page for uer profile not appeared
the language is change by the browser language itself , it has not a configration
You can switch language in Alfresco Share via a browser extension such as "Quick Language Switcher" for Chrome, or "Change Accept Language" in Firefox.
For Alfresco 4, I remember this:
Change Share locale | Alfresco Add-ons - Alfresco Customizations
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