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I have same problem as above, plugged a usb in to my laptop and just went dead no lights, but when I plug the power cable in the light is a blue circle.
Is their a schematic for the 15 r2 — AAP21 LA-CI2P
Rev: 2.
0 ( A01)
2015-10 - 01
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Try removing batteries, pressing holding power button to drain power(more time you press the less likely you need to repeat procedure), re test with a good known power adapter. Check old power adapter to see if correct voltage is given, using voltage meter.... if nothing works reseat ram(use 1 module) ,repeat procedure. Or gpu or ram or bios or power problem(these are most likely culprit.)
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D M you've checked the Rev 1.0 to see if that at least would get you into the ball park?
由 oldturkey03 完成的