Turn on your TV and Fire TV Stick
Put fresh batteries in the Firestick remote
Move the remote close to the Fire TV Stick
Press and hold the Home button for about 10 seconds
Wait for the remote to pair automatically
If it does not pair, unplug the Fire TV Stick for 10 seconds and plug it back in
Try the Home button again
If needed, go to Settings
Select Controllers and Bluetooth Devices
Select Amazon Fire TV Remotes
Select Add New Remote
Press and hold the Home button on the remote again
If the remote still will not pair, replace the batteries and try again