I bought 2 oon H809X 50 IN ROKU TVs in 11/2023 ( SN X02099YA8VRS) and one of my remotes went missing for about a month, but when I found it, it no longer worked. I replaced the batteries and it still didn't respond. The other identical remote works with all 4 of my Roku TV's (I also have 2 TCL Roku TV's) and the 2 TCL simple remotes are also working with all 4 TVs, so the issue is definitely with the 1 remote and not a connection issue or a blocked reader.
As I said, the tv and remote are only 5 months old. Any suggestions?? I've read through pages and pages of posts and tried every troubleshooting suggestion Ive come across..