The .bin file is a raw binary image of the receiver's operating system. The specific version 20200401 refers to the release date of April 1, 2020.
Power on the receiver and press the Menu button on your remote. Download QBOX Q999 1506G STG1 29114 20200401 bin
Sunplus 1506G, known for supporting features like parental controls and customizable aspect ratios. Download QBOX Q999 1506G STG1 29114 20200401 bin