I have a Roku TV G135X and a Windows 10 laptop.
I have previously been able to "find" my Roku TV on my laptop Bluetooth Display screen. This morning I was unable to screen mirror from my laptop to my Roku TV so I deleted the Roku TV in my device settings thinking I could pair them again and start over. Now the Roku TV is no longer findable by my laptop. I tried finding the Roku TV on my phone as well and it also could not find the Roku TV so I believe the issue is on the Roku TV end.
On my laptop, I have verified that Bluetooth is ON
I have verified that my Roku TV and Laptop are on the same home wireless network
In my Roku TV settings I have verified that Screen Mirror is set to "prompt"
On my Roku TV, when I go to Settings>Remotes & Devices> my ONLY option is "Set up a new device". There is NO OPTION for "Pair Bluetooth Device".
It's as though my Roku TV isn't sending out a signal saying it exists. So no other can find it.
What do I do?
I'm guessing it was under "Bluetooth and other devices", but it's not a Bluetooth device. Try adding a wireless display. I haven't had any luck with mirroring even if the device does show up.
One other thing to try, does the TV show up on the Roku app on your phone?
https://play.google.com/store/apps/details?id=com.roku.remote&gl=US