Index: dialin/hd/ui_proxy.py
===================================================================
diff -u -r664049d0f1980ddb5775786ccc5a5e7f46f5ee0a -r6392316cd1b2542ef42da88a73a540e2213bea55
--- dialin/hd/ui_proxy.py	(.../ui_proxy.py)	(revision 664049d0f1980ddb5775786ccc5a5e7f46f5ee0a)
+++ dialin/hd/ui_proxy.py	(.../ui_proxy.py)	(revision 6392316cd1b2542ef42da88a73a540e2213bea55)
@@ -20,9 +20,8 @@
 from ..common.msg_defs import MsgIds, RequestRejectReasons, MsgFieldPositions
 from ..common.hd_defs import TreatmentParameters
 from ..protocols.CAN import DenaliMessage, DenaliChannels
-from ..utils.base import AbstractSubSystem, publish, DialinEnum
-from enum import unique
-from ..utils.conversions import integer_to_bytearray, float_to_bytearray
+from ..utils.base import AbstractSubSystem, publish
+from ..utils.conversions import integer_to_bytearray, float_to_bytearray, unsigned_byte_to_bytearray, short_to_bytearray
 
 
 class HDUIProxy(AbstractSubSystem):
@@ -1017,8 +1016,17 @@
 
         """
 
+        major = unsigned_byte_to_bytearray(0)
+        minor = unsigned_byte_to_bytearray(0)
+        micro = unsigned_byte_to_bytearray(0)
+        build = short_to_bytearray(0)
+        compatibility = integer_to_bytearray(0)
+
+        payload = major + minor + micro + build + compatibility
+
         message = DenaliMessage.build_message(channel_id=DenaliChannels.dialin_to_hd_ch_id,
-                                              message_id=MsgIds.MSG_ID_REQUEST_FW_VERSIONS.value)
+                                              message_id=MsgIds.MSG_ID_REQUEST_FW_VERSIONS.value,
+                                              payload=payload)
 
         self.logger.debug("Sending ui request for version to HD")