diff --git a/udfps/UdfpsHandler.cpp b/udfps/UdfpsHandler.cpp
index cc73c17..c57bf48 100644
--- a/udfps/UdfpsHandler.cpp
+++ b/udfps/UdfpsHandler.cpp
@@ -113,11 +113,14 @@ class XiaomiSm8450UdfpsHander : public UdfpsHandler {
             if (!enrolling) {
                 setFodStatus(FOD_STATUS_OFF);
             }
-        } else if (vendorCode == 21 || vendorCode == 23) {
-            /*
-             * vendorCode = 21 waiting for fingerprint authentication
-             * vendorCode = 23 waiting for fingerprint enroll
-             */
+        }
+
+        /* vendorCode
+         * 21: waiting for finger
+         * 22: finger down
+         * 23: finger up
+         */
+        if (vendorCode == 21) {
             setFodStatus(FOD_STATUS_ON);
         }
     }