When you download a "Next 999HD.rar" file, it usually contains one or more of the following:
Specialized tools used on a PC to "load" the firmware into the receiver, often via a serial or USB connection. General Update Process Download NEXT 999HD rar
After the restart, check the System Info section in the settings to confirm the new version is active. Risks and Precautions When you download a "Next 999HD