Pads only are pretty easy on front:
-- Fr: grab big spring on back of caliper with channel locks (behind pads), pop out of outside holes and hinge away, use big flat screwdriver to pry pads away from rotor (outside first, then inside)...watch your wiring for pad wear sensors..put the wired pad back in the same place.
--Rr: You'll need brake tool like this (for screw in piston):
Remove the guide pins from back of caliper, counterhold nuts with twin same-size wrenches. Pull pads, compress piston, replace.
Off course clean all the pad seating/sliding surfaces good. fr & rr with little wire brush and brake cleaner.
Front rotors need the caliper off to remove, 2 big triple-square bolts on back...high torque...think there's a little nut in the way of top bolt (remove).
Rear rotors, remove caliper frame as I remember from back..2 bolts? ...type?