The Hytera HP785 runs on a unique firmware architecture. Using the wrong software will result in a "Model Mismatch Error" or, worse, corrupt the radio’s codeplug, turning your device into an expensive paperweight. You must use the specific Hytera_HPSeries_CPS version that explicitly lists the HP785 in its device support matrix.
Hytera typically does not provide direct "public" download links for Customer Programming Software (CPS) to end users. Instead, software is distributed as follows: hytera hp785 programming software download