- Connect RS232 Null cable to computer's COM port and the receiver while the receiver "OFF" via the on / off switch on the rear of the receiver.
-Open Software AZ-upgrade, choose the image and click connect S8XX_factory_VX.XXXX.abs
- Turn the key on / off the receiver and wait for the download to complete.
- accept and expect that the process of recording on flash memory ends.
- Update on the cable with the latest firmware available