Version 1.39 firmware for the Openbox S3 Micro, in a build whose name points to MT7601 support, the MediaTek chipset common in USB Wi-Fi dongles used with these receivers. The 3.51 MB ZIP should contain the update image for USB or loader flashing. It is useful when a wireless adapter based on that chip is not recognised by the standard build. Confirm the model before writing, back up settings and channel lists, and keep power stable throughout so the flash memory is not left half programmed.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @tvsoftwareworld. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.