Find a stretch of empty road.
get to 80mph hit the brakes HARD to 20mph but don't stop completely. 3 times.
Then do 60mph to 30mph and use the brakes firmly but don't stop. 3 times.
then be sure to drive at least 10 mins without using the brake or very lightly to let them cool off.
After an hour of cool brakes they should better and be quiet.
If that doesn't seat the pads properly, then time for something different.
get to 80mph hit the brakes HARD to 20mph but don't stop completely. 3 times.
Then do 60mph to 30mph and use the brakes firmly but don't stop. 3 times.
then be sure to drive at least 10 mins without using the brake or very lightly to let them cool off.
After an hour of cool brakes they should better and be quiet.
If that doesn't seat the pads properly, then time for something different.