diff --git a/notebook_adapter.cpp b/notebook_adapter.cpp
index 896cc53..e7d92ff 100644
--- a/notebook_adapter.cpp
+++ b/notebook_adapter.cpp
@@ -1,7 +1,7 @@
 #define COMMAND_PING 'x'
 #define COMMAND_QUERY '?'
 #define COMMAND_TRANSMIT 'U'
-#define COMMAND_QUERY_PAYLOAD "M764"
+#define COMMAND_QUERY_PAYLOAD "?126\r M764 rev 764002"
 
 #define DATA_MODE_TIMEOUT_MS 1000