No root needed, Galaxy S4 GT-I9505 Lollipop Android 5.0 records calls perfectly.
Please use these settings to record calls:
- Record Mode: 4
- Tune Samsung1: No
- Tune Samsung2: No
- Tune Samsung3: Group1
- Tune Audio Route: Group3
Updated 2015-11-16
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Following ROMs work well without root using above settings:
I9505XXUHOB7
I9505XXUHOD7
I9505XXUHOE3
I9505XXUHOF2
I9505XXUHOH2
I9505XXUHOJ2 -------> Most users said this one works very well
I9505XXUGNH8
I9505XXUPOJ2
Other ROMs may not work, therefore you need to:
- root the phone, then the recorder can fix the problem. Or
- update your ROM to one in the list above (I9505XXUHOJ2 is suggested), then it works without root.
You can see your ROM type in the built-in "Settings - About phone" screen.