Stb Upgrade Tool Ver 4.0 2 Exclusive -

This often happens if the STB wasn't powered on at the exact moment the tool requested it. Restart the process and time the power-on carefully.

If you are referring to the specific version string often found on satellite hobbyist forums (like Sat-Universe), this tool is designed for STB Talk or generic Ali/Hisilicon chipsets. stb upgrade tool ver 4.0 2