Index: scripts/update_package_script/update_package.py
===================================================================
diff -u -r13ca1c7eaaca00299876bfc6077d40064e3592d8 -r5de5ce75fff6bc871400e2058eba7d0fb1a63cd4
--- scripts/update_package_script/update_package.py	(.../update_package.py)	(revision 13ca1c7eaaca00299876bfc6077d40064e3592d8)
+++ scripts/update_package_script/update_package.py	(.../update_package.py)	(revision 5de5ce75fff6bc871400e2058eba7d0fb1a63cd4)
@@ -178,7 +178,7 @@
                         data_2_write = self._decode_data_status[self._DECODED_BYTES_KEY_NAME] \
                             [current_write_index: current_write_index + self.SW_UPDATE_FLASH_BUFFER_SIZE]
                         self._decode_data_status[self._TOTAL_BYTES_TX_KEY_NAME] += self.SW_UPDATE_FLASH_BUFFER_SIZE
-                        self._utilities.send_software_update_msg(target, data_2_write)
+                        self._utilities.send_software_update_msg(target, data_2_write, self.SW_UPDATE_FLASH_BUFFER_SIZE)
                         var = 'A'
                     elif current_insert_index == binary_size and \
                         self._decode_data_status[self._BINARY_SEND_COMPLETE_KEY_NAME] is False:
@@ -187,21 +187,19 @@
                             [current_write_index: current_insert_index]
                         data_2_write += [0] * (self.SW_UPDATE_FLASH_BUFFER_SIZE - remaining_bytes)
                         self._decode_data_status[self._TOTAL_BYTES_TX_KEY_NAME] += remaining_bytes
-                        self._utilities.send_software_update_msg(target, data_2_write)
+                        self._utilities.send_software_update_msg(target, data_2_write, remaining_bytes)
                         var = 'B'
                     print(current_write_index, self._decode_data_status[self._CUR_DATA_INDEX_KEY_NAME],
                           current_insert_index - current_write_index, var, len(data_2_write))
 
         elif update_ack_status == 2 and self._decode_data_status[self._BINARY_SEND_COMPLETE_KEY_NAME] is True: #CanCommStatus.CAN_COMM_SUCCESSFUL.value: # TODO this should be changed to successful but the ack is not received now yet
             # TODO do we need the electronic signature from xml?
             data_2_write = [0] * self.SW_UPDATE_FLASH_BUFFER_SIZE
-            self._utilities.send_software_update_msg(target, data_2_write, signature_msg=True)
+            self._utilities.send_software_update_msg(target, data_2_write, self.SW_UPDATE_FLASH_BUFFER_SIZE, signature_msg=True)
 
             if self._utilities.get_msg_ack_nack_status(self._utilities.UPDATE_MSG_ACK_STATUS_KEY_NAME) == 2:  #TODO change to successful
                 self._decode_data_status[self._SIG_MSG_SEND_COMPLETE_KEY_NAME] = True
 
-        #print(data_2_write, len(data_2_write), self._decode_data_status[self._DECODED_BYTES_KEY_NAME])
-
     def _process_remaining_data(self):
 
         while True: