Hey all, so I have a 6 year old MBP which had a faulty graphics chip. Following online advice and ifixit guides, I took it apart and did that heating the graphics chip to reflow it. So anyway now it's come back to putting it back together, I put it back together and it won't switch on at all, the MagSafe light won't come on at all either. It would turn on before just with those horrible messes up graphics, but now not at all. Can anyone help me find out why?