If your Roku remote has stopped working, you may not need to replace it. The batteries may simply need changing, while a voice remote can lose its connection and need to be paired again.
The fix depends on which Roku remote you have. Simple remotes use infrared and don’t need pairing, while voice remotes connect wirelessly and can be paired or restarted if they stop responding. Here’s how to identify your remote and get it working again without wiping your Roku or setting everything up again.
Dispatches From The Front 