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Re: Roku 4670x no power, but the power adapter is good.
@AJHYDE, you can't really test a power adapter with no load on it. It's possible that it reads 12V with nothing connected, but as soon as you connect a load it drops significantly. If you have another Roku device that uses the same adapter you could give that a try or purchase a new adapter.
I don't want to speak for @RokuMary-F , but it's likely your Roku is no longer under warranty and there won't be much Roku can do.
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