Download the specific "write-frequency" software for the VEV-3288S directly from the Weierwei official download page . Note that there are typically two versions available: "New" and "Old" ; ensure you match the version to your specific radio hardware.
Set privacy tones (1–50 for CTCSS) for transmit and receive. weierwei vev3288s programming software
Prevent unauthorized programming by setting a 4-6 digit password in the software. Without it, the radio cannot be read or written to. weierwei vev3288s programming software