Apologies for the inconvenience. We would like to know what went wrong so we can assist you further and fix the issue. Have you tried running the steps on this link to get your remote back up and running?
If this issue is not resolved, please let us know along with any additional information you may have that would be helpful for our team to assist you further with this problem.
If Roku thinks I am going to spend hours searching for a possible answer to why my simple remote has quit working, they're wrong. Why can't your cheap company have live support people to talk a person thru issues. Will be buying another manufacturer's product.