Steps for update:
1. Unzip downloaded file and copy to an USB device (pendrive, HDD)
2. Connect USB device to set-top box
3. Turn on set-top box
4. Open Menu
5. Select "Tools"
6. Select "S/W update through USB"
7. Select file
8. Select "Start" button and press "OK"
9. For the question appearing in the windows answer "Yes"
Update porcedure takes about 1 minute. After update device restarts. While update procedure is in process don't turn off device or plug out from wall.
Repairing device for not corresponding update is not under warranty.