I think you will have more hassle than its worth with the Vu+ Turbo tuner. I would ask WoS and see if the offer still stands as you have tried all the available options. Stef is a reasonable guy and if he does let you swap for the internal cable tuner, snatch his hands off! The Vu+ Duo2 is an excellent receiver, just the Vu+ Turbo tuner, and to be fair has had issues since day one.
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