You can't, you need a real remote now that the roku tv has been reset and internet network and password have have erased. You can go the walmart get the wifi voice remote for about $19.88. It will not work with the tv out of the box, it has to be paired to it first. They also sell the One-For_all streamer remote urc-7935, works great with roku tv's. Which is on-sale for $16.88.
Here it is not to roku tv voice remote.
Edmund Roku Community Streaming Expert
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