1

How do you change the "indicator text" in galaxy j1 mini?

2

When the app is in the idle state it may display a "On Standby" notification as the Standby Indicator.
When the app is recording a call it displays a "Recording Call" notification as the Recording Indicator.

On Android 5.1 or older versions you can change the  "On Standby" / "Recording Call" text to whatever you want. However on Android 6 and newer versions the system forces to display the app name with the indicator, so changing the text is meaningless. For this reason Android 6 and newer versions can no longer change the text.