1

HTC Butterfly doesn't need root, Boldbeast Recorder records calls very well in two directions.

Please use these settings to record calls:

- Record Mode: 4
- Record Format: AMR
- Tune Audio Route: Group3

Confirmed by HTC Butterfly Android 4.3.

2

HTC Butterfly S  the call recording feature is disabled by HTC, you should root your phone, then Boldbeast Recorder can fix it.

Please use these settings to record calls after root your phone:

- Record Mode: 21
- Record Format: AMR
- Tune Audio Route: Group3
- Change Audio Controls: Yes
- Change Audio Driver: Yes
- Start Input Stream: Yes

Confirmed by HTC Butterfly S 901S Android 5.0.2.

3

HTC Butterfly 2 doesn't need root, Boldbeast Recorder records calls very well in two directions.

Please use these settings to record calls:

- Record Mode: 1 or 7
- Record Format: AMR
- Tune Audio Route: Group3

Confirmed by HTC Butterfly 2 Android 5.0.2.

4

HTC Butterfly 3  at this moment we have no information.