I had a Roku Express+ 4k with an Enhanced remote control Model RC608 (RC-EL1) but it doesn't work. I try to restart multiple times my Roku and remove the batteries from my control but the pair led don't turn on.
I tried 3 different pairs of batteries and had the same problems.
I am having the same exact issue and have been through 3 replcement remotes through Roku Support (2 that they sent me, and an entire new Roku Streaming Stick +, and not even that new unit as a whole worked on any of the tvs in my house (1 samsung smart tv, 1 samsung tv that has the capibility to connect to the internet, but isn't "smart", if that gives anyone a sense of the era of tv that it is - but don't think this is the issue anyway). Initial remote worked fine for 2-3 months like OPs and then just stopped working one day 5 months and many-emails-with-support-ago
On all 3 RC-EL1 remotes that I have, the pairing light does not respond to any type of combination of buttons, or pressing the pairing button for 30,60,90 seconds. This has been the most frustrating purchase of my life to be quite honest - I used my phone /the roku app which is annoying enough as it is..and when I got a new router, the roku was booted from the network rendering it useless because i have nothing to control it with . It's getting me riled up just typing this how much time and effort has been put into this thing.
Was this ever solved for anyone having a similar issue?