Sapura is at Sect 14, PJ .. VR Tech is at Jalan Yap Kwan Seng near Australian Embassy .. you could get their exact address from Apple website. Just bring your unit to their service centre, explain what wrong.. they'll give a quick check .. if yours is still under warranty, shouldn't be a problem at all. Anyway, VRTech just replaced my friend's MBP logicboard FOC eventhough he does not have ACPP and has been out of the warranty.. VRTech is so called Apple Gold Service Centre.