Ps3 not updating
Don't worry, the oven will not get hot enough to "liquefy" the solder and cause it to pool into one giant glob, but only enough to cause it to "goo up" and reform each individual ball.After the re flow, high quality thermal paste can be used to increase the PS3's cooling efficiency and lessen the chance of the YLOD reoccurring.It should still be an improvement over the stock paste, but AS5 will be better if you can spring for it.-Oven thermometer (these are like at Walmart, please please please use one if you want to eliminate all chances of melting components) -A box fan or equivalent As for disassembly of the PS3, I wont provide instructions because their are many good tutorials out there. v=VHg Ca3XEPic&feature=related So once you've stripped the PS3 all the way down to the board, there's a few things you need to do.This causes an open circuit, and when you try and power the PS3 up again, you are greeted with the YLOD.The other theory is that over time, due to the aforementioned high temperatures, the balls begin to grow "tin whiskers" which cause a short with another ball nearby, once again causing the YLOD.I will also say right now that I AM NOT RESPONSIBLE for any damage you may do to your PS3 or your oven (I'm talking about a conventional kitchen oven BTW, not a microwave!) by following this guide, and I do not guarantee a fixed console.
But, while I'm not saying that these AREN'T the cause of your particular case of YLOD, I will say that most likely, the cause of your issue are the solder balls underneath the RSX (basically the GPU, or Graphics Processing Unit) and Cell BE (basically the CPU, or Central Processing Unit) chips. This style of fastening the chips to the board is know as BGA, or Ball Grid Array.
The main one that you may have heard of is the heat-gun method, which works, but has several downfalls, the first of which in my mind is the price.