I had recently bought a Xiaomi Redmi Note 5 smartphone.
One unexpected bonus for this average smartphone was it's RC app. The RC app can most useful and handy eg if you had misplaced the original remote (or when someone else monopolised it)!
We used it last month to initiate the testing of the LG-V522P.
|RC app main screen on smartphone|
|Initial screen to add a new device|
|Mi App generic screen for the LG-V522P|
It's most unlikely you would lose your smartphone as most owners would have it handy. And it's locatible via the various "find my phone" facilities eg ring as loud as possible facility!
Thus this sort of smartphone is a keeper once retired from it's primary duties - it's your "new" universal RC!!