If you're looking to sync your Roku remote without the pairing button, there are a few things you'll need to do. First, make sure that your Roku and remote are within close range of each other. Next, open up the battery compartment of your remote and remove the batteries. Once the batteries have been removed, press and hold the pairing button for 5 seconds. After 5 seconds has passed, reinsert the batteries into theremote and close the battery compartment. You should now see a blinking green light on your Roku box - this means that your remote is successfully paired!