Index: scripts/update_package_script/update_package.py
===================================================================
diff -u -ra99d0580e0f14cdf80321e963a7121a2225d2c4f -rfb0e5e63dfae201ddd3c41f76bcedf4d778b723c
--- scripts/update_package_script/update_package.py	(.../update_package.py)	(revision a99d0580e0f14cdf80321e963a7121a2225d2c4f)
+++ scripts/update_package_script/update_package.py	(.../update_package.py)	(revision fb0e5e63dfae201ddd3c41f76bcedf4d778b723c)
@@ -90,7 +90,7 @@
 
     def _prepare_for_sw_update(self, stack_to_update: str, file_path: str):
 
-        status = True
+        status = False
         self._reset_variables()
         # TODO how to read from a manifest file. Right now it is passed directly
         stack_to_update = 'TARGET_' + stack_to_update.upper()
@@ -101,8 +101,7 @@
         if send_ack_status == CanCommStatus.CAN_COMM_NOT_STARTED.value:
             self._utilities.send_command_msg(SWUpdateCommands.SW_UPDATE_START.value,
                                              self._sw_update_status[self._SW_UPDATE_STACK])
-            # TODO create a wait for response back
-            # TODO check for status
+            if self._utilities.get_msg_ack_nack_status(self._utilities.SEND_MSG_ACK_STATUS_KEY_NAME) == CanCommStatus.CAN_COMM_READY.value: status = True
 
         return status
 
@@ -194,9 +193,15 @@
             if update_ack_status == CanCommStatus.CAN_COMM_READY.value:
                 line = f.read(self.SW_UPDATE_FLASH_BUFFER_SIZE)
                 target = self._sw_update_status[self._SW_UPDATE_STACK]
-                self._utilities.send_software_update_msg(target, line, self.SW_UPDATE_FLASH_BUFFER_SIZE)
+                if line != b'':
+                    self._utilities.send_software_update_msg(target, line, len(line))
+                if line == b'':
+                    self._utilities.send_command_msg(SWUpdateCommands.SW_UPDATE_VERIFY.value,
+                                                     self._sw_update_status[self._SW_UPDATE_STACK])
+                    print("Leave file");
+                    break
 
-            if line == b'': break
+            if line == b'': print("Leave file 2"); break
 
         f.close()