1 - 2 horas
Friend of mine was going to just throw away his ps3(20g, first gen) away cause he got the ylod. I told him I wanted the chance to repair it, just to see if i could. He told me for twenty dollars i could have the console and i could do whatever i want with it. so I paid him then i went and bought the kit.
when i got the kit and gone over the guide it seemed quick and easy. Surprisingly it was, it took me between an hour and a hour and a half from tear down to rebuild in total. Now i got a second working ps3, granted it a first gen without wifi but for twenty bucks can't complain :) my friend didn't believe me when i told him i got it working again until i showed him
follow the guide. its easy to read and you cant screw up with it