2 - 5 minutos
the back of my iphone 4 smashed after owning it for 2 years and after dropping it numerous times. went to the apple store and they said it woudl cost 150 smackers, so i left with a still smashed phone.
the install was easy. loved the phone. till literally 3 hours later when the phone was bumped off my desk and hit the floor and the MIRROR BACK SMASHED! it was still clean from being brand new. so, now i have a smashed mirror back.
i think this install is super easy and no one needs advice on this. is is that simple.