1 - 2 horas
I had one of the original PS3 that still played PS2 games. So I was kinda sad when I got the yellow light of death. I called up Sony to find out that they wanted $150 to fix it. The closest and cheapest I could find was $119. I ended up buying the $40 kit form ifixit .
It took about 3 hours to fix. Wish there was a backward step by step guide in putting it back together, but over all very simple and anyone can do it with patience.
Be very careful when taking it apart. I accidently broke one of the clips holding down Blu drive ribbon, but was able to fix it. Be sure to keep all screws organized! I used zip lock bags and labeled them all. It really helped when putting the PS3 back together.