java - log.d doesn't appear in Logcat -

I have two smartphones one Nexus 4 and one Vodafone Smart3 (TLC-Alcatel V975). I have two logs in my source code and if I'm debugging on Nexus then the logger appears in the logmark, but when I am using Vodafone Smart 3, I do not see it in log.d logcat ... my The source code is the following:

  Public Zero Savet (see view) {integer hours = Mitsuit Integer minute = mitsuus.tftmonnet (); Log D. ("Mitsus", "bell" + hour); Log D. ("Mitsus", "minutes" + minute);}    
 
 
 some device debug logs Does not print, but you can use the method below  
  log. Wtf ("tag", "msg");   
 This is working for me.