Upgrade steps:
1. Power on  STB, insert COM line to "RS-232" port of STB .
2. rename the upgrade file to "download_ecos.bin", Copy "download_ecos.bin" to U Disk, U Disk insert into STB.
3. Double click software named "GXDownloader_boot_V1.010.exe", it's parameters as "parameter.bmp".
4. Click "START" button, wait 3 seconds, turn off STB, immediately turn on STB, STB is upgrading now.
5. When pop a dialog content "complete ", it means upgare finish, just restart STB, then use it as you want.