For the past three months my remote has been saying that any batteries I put into it are dead. I know this is not true because they are all brand new. The battery icon on screen constantly comes up too, until the remote stops functioning.
If the issue still persists, please contact your TV's manufacturer directly to report this issue and request additional support. Each Roku TV manufacturer provides direct support and warranty services for their products running the Roku OS.
If you need a replacement remote for a Roku TV, you would need to contact your TV manufacturer.