diff --git a/core.js b/core.js
index 232038e..84419d6 100644
--- a/core.js
+++ b/core.js
@@ -81,7 +81,7 @@ function ds4_hw_to_bm(hw_ver) {
 function is_rare(hw_ver) {
     a = hw_ver >> 8;
     b = a >> 4;
-    return (b == 7 || b == 9 || a == 0xb0 || a == 0xa0);
+    return ((b == 7 && a != 0x74) || (b == 9 && a != 0x93) || a == 0xb0 || a == 0xa0);
 }
 
 async function ds4_info() {