Help! My son's MBP model A1286 (retina) early 2011 model has suddenly become a perfect brick! I'm new to this forum and trying to help him recover his machine. He's a recent graduate and unemployed guy who needs his lap top. He has little money, so Apple Care is not an option. I found MacRumor searching the internet for advice troubleshooting the problem, and it appears that some of the forum contributors are pretty savvy about things Mac. So here goes. Maybe someone can help us out? Everything was working fine. He's been using it daily. He used the machine and put it into sleep mode. It was fully charged using the magnetic connector. Come morning it would not wake up. No response to the power button, nada, nothing at all. Not even a slight whirrr or burp. Charge connector glows steady green when connected. Green power indicators on side of machine all light up green. On disconnect of power connector and pressing the little button on the side, the charge indicators will light up - All steady and green, fading after a few moments. So presumably it's not a question of power? Or is this a false indicator? In my search of the internet I found out about PRM and SMC reset sequences, i.e. holding down key board combinations while pressing the power button, all of which we have tried, without any detectable change. We have tried holding the power button down with the magcharge disconnected, and then connecting it, and releasing, and then trying the power button. No go. Still dead as a proverbial door nail. Back story. About a year ago Apple Care replaced the System Board when the display starting to show color bars, streaking, only booting in low performance mode, and other symptoms of the dreaded, and infamous, Apple GPU problem - the one where the wave soldered board connections begin to separate with the hot running graphics chip. Presumably Apple has improved their replacement system boards relative to the ones originally used, but perhaps that's wishful thinking, eh? I doubt that they replaced the battery at that time, but who knows? If they didn't, then it's original battery and started life in 2011. Who knows how many cycles? Lots to say the least. Oh and we have NOT seen any repeat of the previous problems that attended the System Board failure. About myself. I have some experience with other computer systems, both desk and laptop, going back thirty or more years, but not much with Apple products. I have an assortment of basic pc tools, including weird security bits, grounding straps, volt meters and spudgers. I have done a few repairs on other systems that actually worked! And, honestly, some that didn't... But I'm a bit skittish about Apple products - bobby traps and snares for the unwary! So I intend to proceed slowly on this one. So far I have four main theories. Any thoughts or suggestions regarding these, including questions regarding my sanity or intelligence, will be taken under sincere and genuine consideration. To wit: A) The System board is fried (again!) B) The battery is dead and will no longer source enough power to start the system. This might also involve the charging subsystem giving a false charge reading/indication. C) The keyboard/power button combination is defective and is not activating the system. Frayed cable? D) One of it's extensive set of subsystems is defective, or disconnected, which prevents the Apple post sequence from proceeding. Oh, and according to my son, the machine was not subjected to water boarding, drop kicks or other forms of Apple abuse prior to it's giving up the "ghost"... Suggestions?