I found the following online and it worked! So, I choose update and it put 9.3 version back and removed 9.4. I hope it works for you too.
You can sometimes get the previousversionof the firmware during the rollout of a newversionfrom the "Secret Screen" (press Home 5 times, FF 3 times, Rewind twice). Choose "Updatesoftware" and it may offer the previousversionas anupdate
Oh no. I'm so sorry. When I followed the steps (press Home 5 times, FF 3 times, Rewind twice) it took me right to select update. I did get one reply from Roku on Facebook messenger but they asked what my error messages were. They should already be aware of this since so many people are having the same issue. I hope yours gets resolved soon.