Can anyone suggest a working android app I can have on my mobile which will work as TV remote. I have TCL Android TV. Most remotes on play store only work for volume, can't change input source and can't power on via app. Can only power off and change volume.
The android remotes only control the android functions, the input/channel changing etc is all specific to the tv brand and model. You need to get a universal remote like a Harmony to do what you are looking for.