Hey everyone! I'm new to these forums so sorry if this thread is posted in the wrong section, in which case feel free to move it. To the issue: My MBP cannot find the internal hdd. At first when I tried booting, the famous "flashing folder with questionmark" appeared. After reading up a bit, I found out that this means the MBP cannot find any OS to load. I booted via the installation CD and tried reinstall the OS but failed as it couldn't find any harddrive to install to. On the apple guide that I was following it said that the most likely reason is that the harddrive is broken(and thus losing all of my data on it) and must be replaced. I was devastated! Lol. When I bought the MBP, I also upgraded the hdd to a larger one(not an apple hdd) that the apple retail store installed for me and I got the original apple hdd aswell so I already had 2 hdds, one of which I now thought was broken. So I installed the original apple hdd in the MBP, couldn't boot from that either. I found that rather strange that 2 hdds were broken.. so I tried booting from my first hdd via external USB, worked perfectly and all my files were there(you can guess how happy I was that it wasn't the hdd that was broken!). I called the retail store and asked them for support and told them what I now have told you and they gave me the answer that it is most likely the SATA-cable that is the fault here. It could however be the logicboard, in which case it would be quite a costly matter and it would be better to just buy a new MBP in that case. In any case, they told me to send it in for a repair. Due to my guarantee(or what it's called in english) had expired I had to pay for this. I still haven't sent it in yet because I'm thinking about trying to repair this myself - how hard could it be to replace a cable? So after this rather lengthy post, what do I want to ask you? Well, I want to ask for your opinion if you think that it actually could be the SATA-cable that is the fault? I don't want to replace a cable that isn't broken. Also I want to ask you, is ifixit the only place that sells these cables and is 40$ the standard price for this? I live in Sweden so it would be easier if there were any store in Sweden that sold this - or at least in EU. And do you know the exact cable that I need? Is it the one on ifixit? In case you're wondering, I bought this MBP in... Nov '09 so I assume this counts as a mid 2009 model.