i wet this for another site
1) Connect the master and slave box with the Cable (Serial Null Modem) that came with your receiver.
2) Turn the master receiver on and press the "POWER" key to make it standby “- - : - -“.
3) Turn the slave receiver on, in the master receiver’s display the LED will display 'H' and blink.
4) Input in the master receiver the password:
111 –to- Transfer S/W
222 –to- Transfer data
333 –to- Transfer data, then S/W
444 –to- Copy the whole flash except Boot Loader.
5) After inputting the password. The transfer will begin. When finished, the LED will Display "-End".
6) Disconnect the Cable (Serial Null Modem).
7) Turn the receiver OFF from the switch on the back of the receiver. Wait 5 seconds, and then turn it back ON.
Note: By using the different passwords, you can do what ever you want to do for Box to Box.