Choose an available preference
Open Language and Region in Settings and Privacy. Select from the languages and countries the current screen offers. Wait for its saved result before assuming that your account preference has changed; if an error appears, retry later or contact support.
The preference screen describes language and region as inputs for suggesting local creators and choosing the language of account emails. Choosing a language is not a promise that every menu, video, message, article or support answer will immediately be translated.
Keep country and visibility separate
The country you choose is a declared preference or profile detail. It is not proof of where you are physically using the app. A network estimate of access country, where displayed, is a different observation and should not be confused with this choice.
Review privacy controls before displaying country on your profile. Selecting a region does not itself mean you have agreed to publish a home address or precise location. Avoid adding that information to public captions.
Make your own posts understandable
Write a clear title or short summary in the language you intend to use. Explain uncommon terms when useful, and identify the language of a recording so viewers know what to expect. Read caption and title guidance and Voice and Griot guidance.
Data saver and autoplay are separate settings; changing language will not resolve a slow transfer. Use the data guide for that problem. If a preference appears different between SeleVerse and SeleVista, report the two displayed values rather than repeatedly changing unrelated profile details.