diff --git a/js/msp.js b/js/msp.js
index 8415d8c9..2d2b4915 100644
--- a/js/msp.js
+++ b/js/msp.js
@@ -210,7 +210,7 @@ var MSP = {
     process_data: function (code, message_buffer, message_length) {
         var data = new DataView(message_buffer, 0); // DataView (allowing us to view arrayBuffer as struct/union)
 
-        switch (code) {
+        if (!this.unsupported) switch (code) {
             case MSP_codes.MSP_IDENT:
                 console.log('Using deprecated msp command: MSP_IDENT');
                 // Deprecated
@@ -839,6 +839,8 @@ var MSP = {
                 
             default:
                 console.log('Unknown code detected: ' + code);
+        } else {
+            console.log('FC reports unsupported message error: ' + code);
         }
 
         // trigger callbacks, cleanup/remove callback after trigger