diff --git a/popn@asphyxia/README.md b/popn@asphyxia/README.md
index fde0db8..cc36588 100644
--- a/popn@asphyxia/README.md
+++ b/popn@asphyxia/README.md
@@ -11,4 +11,13 @@ Changelog
 =========
 1.0.0
 -----
-Initial Release.
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+Initial Release.
+
+How to import data from non-core Asphyxia
+=========================================
+To import data, you have to :
+* Create your popn profile in Asphyxia-core. You just have to insert your card in the game and follow the process until coming to the select mode select screen. Once here, quit the game.
+* Create a backup of your savedata.db file (in case something goes wrong).
+* In the web UI of Asphyxia, go to POPN -> Profile and click detail on your profile
+* Put the content of your non-core asphyxia popn music files in the text fields (pop.json and popn_scores.json) and click Import.
+* Data is imported. Run the game, insert your card and your scores are available.
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