Basically after bleeding my saph brakes (Cossie 2wd fronts and 4x4 rears) repeatedly still NO front brakes backs (pistons do not move at all) work fine but fronts not at all, when bleeding we have done it correct and just clear new fluid comes out of nipples however after trawling on here tonight I noticed something, I have fitted my fronts on the wrong sides meaning the bleed nipple is at the bottom not the top would this be why they are not working? also my fronts calipers have a bleed nipple on each side is there a reason for this?

Any help appreciated

Cheers