Xiaomi releases updates for this model every 3–6 months. However, the portable variant receives less frequent updates than non-portable models.
To keep your Xiaomi Mi TV 4A Pro 43" running smoothly with the latest features and security patches, you can perform a firmware update directly through the TV's menu. Automatic Over-the-Air (OTA) Update firmware update on xiaomi mi tv 4a pro 43 portable
Go to Settings > Device Preferences > About > System update . Confirm the build number matches the latest release notes. Xiaomi releases updates for this model every 3–6 months