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MacBook Air 2011 Model No Power Issue.



No1-PRMA reset
  • Shut down the computer.
  • Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step
  • Turn on the computer.
  • Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
  • Hold the keys down until the computer restarts and you hear the startup sound for the second time.
  • Release the keys.

No2-Do SMC reset 
  • Shut down the computer.
  • Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
  • On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
  • Release all the keys and the power button at the same time.
  • Press the power button to turn on the computer. 

No3- Disconnect battery connecter and press the power button with 45 Wt adapter.(check light on adapter connecter which connect to megsafe.

No4-Check the trackpad cable and trackpad and refix the cable

No5- Disconnect top case and track pad connecter and do post operation 

POST (Power on self test)


If issue not resolve then contact Apple tool free number or Apple authorize service provider

Thanks 
pradeep swain 
 


 

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