USGS Landsat scenes southern hemisphere projection fix?

Landsat scenes in the southern hemisphere when imported in Idrisi are always in UTM N.   USGS says that  "The southern UTM Zone projection has been removed to avoid complications with some cartographic products. Although southern hemisphere scenes will incorrectly be tagged as northern hemisphere scenes, the data and coordinates will be accurate and displayed correctly."  It is time consuming to re-project scenes to UTM S-  Is there a quick fix to this?  If the underlying data is accurate it should be sufficient to change the projection in name alone correct? How can I do this?


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