Visit the Manufacturer Support Portal: Go to the official website of the brand (e.g., Cantonk.com or LSVision.com).
Warning regarding third-party sites: Be cautious of sites like "4shared," "mediafire," or random forum links claiming to have "CVD1810 firmware." Because the model number is likely incorrect or generic, these files could contain malware or brick your device. Always prioritize the manufacturer's official website. cvd1810 firmware link