I am having the same problem with my RCA TV. Dame model as yours. Did you happen to find the right codes?
"Our support team would be happy to troubleshoot the issue with you! Feel free to reach out to them on Twitter @RogersHelps or on Facebook.com/Rogers."
"There are certain eligibility requirements that would need to be met before unlocking. For more info on these requirements, please reach out to our @RogersHelps team on Twitter or"