Alfredo Guilenea, I tried today your style but still goes freezing. It really became powerfull, when I unplug the USB HDD from external PCB plug again no any shut down the PS3 system, this is good. However it didn't solve the freezing problem. Is there any solution advice to freezing problem? By the way today I tested 25 pcs Cobra ODE QSV model and only 3 pcs made freezing problem. I think Cobra Team produced some defective products. In my opinion new QSB series has 10% faulty product and can't fix via updates, because looks like hardware problem. One of them can't update. I'm waiting your another advices.... Thank you so much in advance.