Always backup your current channel list before uploading a new one in case of compatibility issues.
Ensure your device is the Prifix 7400D Silver/Black (Standard Definition) or the HD version, as the files are not interchangeable. Always backup your current channel list before uploading
Place the extracted channel file in the root folder of the USB. Plug the USB into the Prifix 7400D Open Menu: Press the Menu button on your remote. Always backup your current channel list before uploading
Go to Tools or Setting -> Upgrade by USB . Always backup your current channel list before uploading
Because these files are updated frequently by hobbyists, you can find the most recent 2022/2023 lists on these platforms:
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