I have been playing around with a Soniq S55UV16A-AU. I bought it without a remote from a second hand store, and discovered that a Kmart Anco universal remote would not connect no matter what code was used. Without the remote, I couldn't tune any channels, or use most of the 'smart' tv capabilities. I discovered yesterday that I could plug in a keyboard into the USB port and control what I discovered to be a 4.4.4 Kitkat Android OS.
The keys I have found are:
- Android Home: Fn + F3
- TV Menu: Ctrl + Esc or M
- Back: Esc
- Channel List: Enter
- Channel Info: I
- Channel Input: 0 - 9
- Volume: Fn + F10/11
- Mute: Fn + F9
- Search: Alt + Space
- Screenshot: Print Screen
Using this I was able to connect to wifi and scan tv channels.
At this point, I can't find the exact buttons to control the episode guide screen, I can't figure out how to get Alt + Tab to work properly and can't do +/- channel changing. The cinnavision servers are clearly dead too, so APKs would have to be transferred.
I highly suggest this keyboard for your situation.
https://www.amazon.com/Logitech-Wireless-Keyboard-Touchpad-PC-connected/dp/B014EUQOGK/ref=asc_df_B014EUQOGK/?tag=hyprod-20&linkCode=df0&hvadid=385184279251&hvpos=&hvnetw=g&hvrand=4069020130514927177&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9019785&hvtargid=pla-365069386733&psc=1&tag=&ref=&adgrpid=78921990659&hvpone=&hvptwo=&hvadid=385184279251&hvpos=&hvnetw=g&hvrand=4069020130514927177&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9019785&hvtargid=pla-365069386733