
You need to TAKE the dog outside for his toilet. Go back to basics and actually take him outside every 15 minutes or so ...when he does something outside , praise him and make a HUGE fuss.
IF he has an accident indoors (which he shouldn't if you take him out regularly) , clean the area up with biological soap powder dissolved in hot water and do NOT make any fuss , don't tell him off at all
This should help reinforce that out is good and bad is boring
Melody :)