Hi all, I've decided to install a new ssd samsung 840 pro to my mbp 13.3 mid 2012. It works very well in the main hdd bay with the old hdd with a caddy installed to optical. Then I wanna swap them, sdd to optical bay and hdd back to its old location to achieve Sudden sensor. Unfortunately, when I reassemble, my MBP cannot boot. The symptoms are: + magsafe led doesnt turn on. No green no amber. It works well with my MBA +cant check batt level by the side button +SMC PRAM Reset but no luck +magsafe unplug, batt unplug then when power button is holding reconnect the battery and my lappy boots with highest fan speed. It cant detect batt level. If I shutdown then can turn on by press power button but with high fan speed. I think SMC is disable +connect power cable then everything is back to dead I think SMC has a problem. My mbp is still under warranty but could you please suggest me a solution please? Coz I'm afraid of taking it to genius bar with a new ssd and ram Thank you so much and hope my beloved lappy back to me soon!