Still a problem with the Roku 3. Remote stops working while unformatted Samsung 32GB microSD (yeah, overkill) is inserted in my Roku 3. However, the roku does respond when using the smartphone app as a remote, in order to select 'format'. It took a long time, and even froze during formatting. After about 10 minutes, I finally unplugged the Roku for about 10 seconds. The remote still didn't work after rebooting. However, after I used the app to restart the Roku, the remote finally works again. Hopefully this process works for the Roku 2 as well. Good luck!