blu is yours a ute /wagon or sedan?
not sure if they are different but wagon doesnt have
irs,
handbrake is like a drum brake inside a disc brake
so maybe take the disc off, check lining on handbrake
check spring etc,
clean it out
there is a picture below shows it inside
ps you want to keep adjusting until you cant turn disc around, then make sure it moves smooth when handbrake off (might have to back off adjustment)
good luck,
btw im not a mechanic so take with grain of salt.
cheers