Hello,
I possess a LG Optimus L9 P760 with an official rooted JB ROM (V20C Europe, Android 4.1.2). I tried a lot of call recording applications including yours and the result is always the same on standard API setting :
- If I select "Microphone" audio source (it is also the default setting if I pick "LG Optimus L9" in the phone list type), I end up with a file which has the good duration but contains absolutely no sound (I checked it with Audacity, there is not even a very low sound)
- If I select "Voice up and down" audio source, I end up with no file at all : on your application, I see the green square with circle at my call begin, then it disappears during 5 seconds (I don't see the red square with the 2 lines) and then the green square reappears
There is no 2WCR kernel patch for my phone so, of course, the "kernel" method fails. I also installed Alsa Mixer on my phone and it seems operational (when I open it, I see the possible settings). But when I use the Alsa Mixer setting in Call Recorder, the phone reaction very close to what I described for "Voice up and down" audio source setting on standard API : the green square is on my call begin, then a black square appears during about 2 seconds, then, nothing and finally, 5 seconds after, the green square appears again.
Do you have any idea if call recording is possible on a LG Optimus L9 on JB ? (on ICS, "Microphone" audio source was able to record something)
Thank you for your answers.