If you purchased your radios from a dealer (like Buy Two Way Radios, Empire Wireless, or similar), they often have a "Resources" or "Support" page on their website. They usually provide the correct software for the products they sell.
Ensure you are programming within the legal frequency limits and bandwidth requirements for your region. Hyt Tc-508 Programming Software Download
Because Hyt (a brand historically aligned with Hytera, though often sold as a budget or OEM line) has shifted focus, finding the legacy TC-508 software requires caution. Here are the safest avenues: If you purchased your radios from a dealer