Answer :

After reassembling a laptop, but before installing the battery or ac adapter you should:

  • Save and close all open files
  • Exit all available applications
  • Click the Start menu button, and shut down your computer
  • Remove your computer and all connected devices from their electrical outlets.
  • Disengage all attached network devices and peripherals, such as keyboard, mouse, and monitor, from your computer.
  • Pull out any USB or media card and optical disc from your computer.
  • Remove the AC adapter from the power supply
  • Unplug the power supply
  • Put the AC adapter onboard for further operation
  • Remove the compulsory battery.
  • Open the back cover of a laptop to remove components one by one.

All these are what you should do after re-edifying a laptop, but before installing the battery or ac adapter.

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