Hi Khaled,

If you are still trying to get those locking PCA's off of your components you MIGHT want to try the following: Grab a pair of pliars, and using a piece of cloth to protect the plug, rotate the silver plug clockwise while holding onto the gold portion of the plug with your hand. The pliars will make it easy to apply a lot more torque than your hand can, so start with a light amount of pressure, you probably don't want to hurt your cables.

Ryan