If you're just moving the old stick from one TV in your household to another, you don't have to do anything. If you're going to try to sell it or give it to someone else then you'll want to perform a factory reset and unlink it from your Roku account. It's easiest to do the factory reset from the Settings menu. If you're going to use it yourself in another location with a different Wi-Fi network then you still don't have to do anything except unplug it and plug it into another TV, but you will have to set up the Wi-Fi connection again. You don't have to do anything with the remote in any case.
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