diff --git a/en/install-hisi.md b/en/install-hisi.md
index 9760020..55cac4b 100644
--- a/en/install-hisi.md
+++ b/en/install-hisi.md
@@ -4,6 +4,9 @@
 For XM boards with Hi35{16Ev200,16Ev300,18Ev300} SoC ONLY!!!
 ------------------------------------------------------------
 
+Other boards may have different memory layout like HI3518Fv200
+uses 0x82000000 instead 0x42000000
+
 ### Supported sensors
 
 Please look up your sensor in [the list of supported devices][1].