Revealed: how to fix the Apple iOS 6 map FAIL on your iPhone 5

So, you've either bought the brand new iPhone 5 or have upgraded your existing iPhone to iOS 6 and discovered, like half the Internet it would appear, that the new Apple Maps which have replaced Google Maps are, to be polite, an utter and total stinking FAIL. I'm no Apple hater, in fact quite the opposite as I own and use an iPad 2 and an iPhone 4S on a daily basis. However, I'm not so much of a fanboy that I cannot call it as it is when Apple gets things very wrong indeed.