08-03 08:32:33.461 W/BroadcastQueue( 653): Background execution not allowed: receiving Intent { act=android.intent.action.BOOT_COMPLETED flg=0x400010 } to ro.pub.acs.startonboot/.StartMyActivityAtBootReceiver
Solution: specify the package name in command
adb shell am broadcast -a android.intent.action.BOOT_COMPLETED -n ro.pub.acs.startonboot/.StartMyActivityAtBootReceiver