Epic repair guide & video. My PS3 was clearly a different model than the one referenced in the guide, but the repair still worked like a champ - so stoked about that - THANK U IFIXIT!
I did two separate 30 second rounds of heating on each of the four referenced areas on the motherboard. Notable differences - [Step 5] the top cover was not as easy to remove as the guide assumed, there was a fastening clip towards the left rear of the cover that had to be unhooked. [Step 10] This control board assembly did not exist. [Step 12] Step 27 is required during this step in order for Step 15 to work. [Step 13] The control board bracket did not exist. [Step 15] Motherboard assembly came out with heat sinks, fan, and plastic frame detached. [Step 22 - 23] Memory card reader did not exist. [Step 43] Motherboard is a bit different, with thermal pads in different places. Just note where they are, and replace the ones you remove.