How to Remove an iPad Micro

Turn off the iPad by holding down the 'Sleep' button on top until the 'Slide To Power Off' slider appears. Slide the slider to the right to power down the iPad.
Press the small end of the SIM eject tool into the small hole on the bottom of the SIM card tray to eject the tray. When viewed on portrait mode, with the 'Home' button on the bottom, the SIM card tray is on the left side of the iPad, toward the bottom.
Remove the iPad's SIM card tray by carefully pulling it away from the device.
Remove the micro-SIM card from the tray by pulling it off of the tray.
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How to Use a USB Hub on a MacBook (3 Steps)

Plug the power adapter of the USB hub into the wall outlet, if you are using a self-powered USB hub. Self-powered USB hubs provide more power to any connected devices than bus-powered USB hubs.
Insert the USB connector of the hub into the USB port closest to you when you face your MacBook.
Plug your USB devices into the ports on the hub. Some devices run solely on the power from the USB connection, while others include a plug for a wall outlet. Your devices will be active as soon as they are connected and have power.
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How to Clear the PMU on a Mac (4 Steps)

Quit all of your active applications and shut down your Mac.
Once your computer is completely shut down, disconnect the computer's AC power Adapter and remove the battery from your Mac.
Press and hold down the power button on your MacBook or MacBook Pro for at least five seconds and then release the power button.
With your Mac still shut off, reinstall the battery in your MacBook or MacBook Pro and reconnect the AC Adapter. The PMU/SMU has now been reset on your computer.
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How to Hard Reset an Apple 3G (4 Steps)

Plug the dock connector cable into the iPhone or iPad and plug the opposite end of the cable into your computer's USB port or into the power adapter.
Plug the power adapter into an electrical outlet to charge the device's battery.
Press and hold the 'Power' button located on top of the Apple 3G device while holding down the 'Home' button.
Release the buttons once the Apple icon is displayed on the Apple device. Once the device has reset itself, it will boot up to the home screen.
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How to Add Yahoo Mail to your iPad

Browse to Yahoo! Mail (see 'Resources') and create an email account if you do not currently own one.
Press the black power button on the top-right side of your iPad. Slide the arrow to the right to unlock the device.
Tap the 'Settings' app on your iPad screen.
Tap 'Mail,' 'Contacts' and then 'Calendars.' Tap 'Add Account...' and tap 'Yahoo! Mail.'
Type your full name, full Yahoo! Mail address (example@yahoo.com) and password. Tap 'Save.'
Click the 'Home' button on your iPad and tap the 'Mail' app. Tap the Yahoo! account to view and write emails.
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How to Operate the Apple iPad (9 Steps)

Press the 'Wake/Sleep' button to wake the iPad. If your iPad is off, press and hold the button until you see the Apple icon. Your iPad will start up in a few seconds.
Press the 'Wake/Sleep' button to put your iPad to sleep. To turn it off, hold the button down until the 'Slide to power off' slider appears on the screen. Slide it to shut off the iPad.
Press the 'Home' button on the front of the iPad to back out of the app you are running and return to your menu. Slide the 'Slide to unlock' slider to get started. If you are on the menu, pressing this button brings up the Search page, where you can search for apps or data by typing it.
Press the 'Up/Down' volume button on the side of the unit to raise or lower the volume.
Turn the 'Screen Rotation Lock' switch above the volume buttons to keep the screen from rotating as you move the iPad around.
Turn the unit from a horizontal to a vertical alignment or vice versa to automatically rotate the screen.
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How to Open a Magsafe Power Adapter (5 Steps)

Unplug the adapter from the power outlet and allow it to cool for a few minutes.
Remove the grounded wall cord or 2-prong wall plug connector from the adapter.
Hold the adapter and cut along its seam, using the circular metal cutting tool; cut only on one side of the adapter.
Flip the adapter over and cut along the seam on the opposite side.
Pry the halves of the casing apart with the putty knife, cutting more if necessary. Be sure to keep track of the cord winding tabs, as they will fly off if you pry too vigorously. The adapter should now be opened.
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How to Find Out What Is Damaged If I Dropped My MacBook Pro

Open the MacBook Pro. Inspect the screen for cracks, chips or other damage. Verify that the computer opens smoothly and closes securely.
Select the 'Apple' menu and then 'Restart' to restart the computer. Damage to the internal hard drive isn't always evident until the next reboot, so it's important that you perform this troubleshooting step. If the MacBook Pro doesn't power on at all, plug it in to ensure that it has an adequate power supply.
Open iTunes and play any song to rule out damage to the MacBook's audio card and audio output. Optionally, plug a headphone set into the computer's headphone jack to make sure the jack has not been damaged.
Connect to a Wi-Fi network using AirPort. Open Safari and navigate to a website to make sure the Internet adapter still works. Navigate to a video website such as YouTube or Vimeo and confirm that the video card functions properly and you are able to play a video.
Launch a chat program such as Skype or iChat and begin a video chat with a friend. If you see your own image in the corner of the screen, it means your webcam is still functioning.
Monitor how quickly your battery power drains when the MacBook Pro isn't plugged in to ascertain whether battery damage has occurred. If the battery drains significantly faster than it did before, the battery is damaged.
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