The firmware upgrades for the models 9200, 9300C and 9400 are exactly the same.

Also the used firmware file is the same for all of these models.

A software update via USB- Stick is most simple.

All you need is an USB- Stick and the correct software for your receiver.

The software is downloadable at www.nanoxx.info

• Download the software, unpack it on your USB- Stick and connect the Stick with your NanoXX receiver.
  

• After that open the receiver- menu and switch to File Tools. There you'll find the USB Explorer.
  

• Open it and you’ll see all files stored on the USB- Stick.
  

• Now choose the correct update- file and press the red button on your remote to start the update.
  

• Please wait till the update- process is finished. The receiver’ll reboot automatically.
  

Do not disconnect the receiver from power while firmware upgrade is in progress.