Yeah, in service mode, you can do so much, you can ID swap motherboard and BD-drive and much more. but then again it's a locked mode and you need to be connected a to a server. It's more limited also than it looks so what people are using is not even close to a copy of a JIG.
Well this exploit wouldn't have been possible without the jig method by Sony, which leads to bad news for the future Sony console. They will no doubt either discontinue this method of servicing the PS4 (most likely) or will figure out how to prevent this from happening again with more security (less likely).
PDF = very interesting reading, appears to show the flow sony service centers take.
Indicates that when you send in a failing/dead PS3 they have the ability to provide a clone of your original PS3 by ID Swapping with a referbished unit.
This is all kinda expected - the interesting thing is that they seem to log specific information about every PS3 on their servers (not really that unexpected) - but this PDF gives some indication as to what they actually log.
Not sure what exactly this brings to the table, but it clearly indicates a comms channel via the ethernet port as well as via USB.
Of course this could all be fake info - The PDF isn't anything special in the eye candy stakes - but the why would it be! If it's for internal use only (hehe) there isn't any need to produce a nice glossy manual is there!