If you are using an official Hytera cable, always try the Hytera-specific driver first. If you are using a generic aftermarket cable, you may need to determine which chipset it uses (Prolific vs. SiLabs) and download the driver directly from that chipset manufacturer.
If installation fails with “Third-party INF does not contain digital signature”: hytera usb driver
Some drivers must be initialized on each individual USB port you plan to use. If a radio isn't recognized, try switching ports. Hytera USB Driver Installation Application If you are using an official Hytera cable,
Installing the Hytera USB driver can resolve these issues and ensure a stable connection between your device and computer. If installation fails with “Third-party INF does not
: If "Cannot open the USB device" appears, try switching to a different physical USB port on the PC, as the driver installs specifically per port.