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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