ONN Roku TV Live TV cable channels not working after upgrade
The Live TV cable channels on my ONN TV quit working, display a blank screen. This TV is about 8 months old and had been working fine and I'm pretty sure the problem started after a software upgrade.
If I do a factory reset and scan for channels before I connect to the internet the cable channels work, but as soon as I connect to the internet and it does an update they quit so I'm pretty sure the problem is with an update. This is using Consolidated Communications old Entone cable system.
I called ONN TV support and it took me several calls to convince them it wasn't a cable problem even though I told them I had swapped this TV with a working non-Roku TV and the problem stayed with the ONN. I had to call my cable company and have them say it wasn't their problem before they would accept it was a problem with the TV. Eventually after having me do another factory reset (I had already done 5) and scanning for channels again (takes 20 minutes and I had already done 10) they said they would start a RMA claim. I need to take 3 pictures of the front and back of the TV and send them a copy of the receipt and they will process the RMA.
I don't want or need an RMA as I'm guessing a replacement with current software won't work with this cable system either. I see that this is similar to https://community.roku.com/t5/Discussions/Live-TV-not-working-on-Roku-TV/m-p/638751#M14191 Dec. 2020.
Is there a way to do a factory reset and have it not update when you connect to the internet? Or get somebody to actually look into what about the update broke it?
Jim