Why are Log.d() and Log.v() not printing

Android Studio filters lines that have already been logged but Log itself may filter some levels when logging. See Log.isLoggable:

The default level of any tag is set to INFO.

(However on many phone it is actually set to DEBUG or VERBOSE.)

Accepted answer not working

My solution:

when your Log.d is not working then Log.wtf is work

It's working for me, may be this is helpful to other, who find solution