How to Restore a Custom iPhone IPSW

Back up your crucial iPhone data.
Open iTunes. Connect your iPhone to your computer using the iPhone USB cable.
Hold the 'Home' and 'Sleep' buttons down simultaneously for 10 seconds.
Release the 'Sleep' button immediately after 10 seconds are up. Continue to hold down the 'Home' button. If done successfully, iTunes will display a dialog window informing you that it has detected an iPhone in recovery mode. Click 'OK' and you are taken to the iPhone restore page. The timing is tricky and it may take a few tries.
Hold down 'Control' (or 'Option' on a Mac) and click 'Restore.' This will bring up a file browser. Locate the custom IPSW firmware and click 'Open.' iTunes will begin restoring the iPhone using the custom firmware. A progress bar will indicate how far along the process is and a progress bar will also display on the iPhone. A confirmation dialog will inform you of the successful restore.
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How to Download Wallpapers on a Mac

Begin to address your wallpaper needs on your Mac by bringing your cursor to the Apple icon in your tool bar. This icon is located on the far left of the tool bar at the top of your screen and provides a list of display features.
Select 'System Preferences' from the Apple menu to prepare your computer for the wallpaper download. This menu leads you to an icon called 'Desktop,' which allows you to manage every aspect of your Mac's appearance.
Save pictures and images that you download for use as wallpaper in the 'Picture' file so you can access them easily on your Mac. You can access your documents from the 'Finder' icon on the 'Dock' menu along the side of your screen.
Upload photos from your digital camera onto your Mac to increase the potential wallpapers for your desktop. You can connect the memory card into your Mac's USB port and access the appropriate drive through the Mac 'Finder.'
Click twice on the 'Photo' file and double click again on the appropriate photo to complete editing before using it as wallpaper. Your photo will pop up in your default photo editor and you can use the Mac's resolution limitations to establish boundaries for your creativity.
Access 'iTunes' through your Mac to locate album covers, art and other materials promoted through Apple for download as wallpaper. Apple will occasionally place images ready for use as wallpapers up on 'iTunes,' but you can also copy images directly from its website (see Resources below).
Search for seasonal or special wallpapers for your Mac through Apple's Downloads page (see Resources below). This page offers safe and complete wallpaper files ranging from promotional wallpapers for artists to backgrounds related to upcoming holidays.
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How to Restore Your iPhone After Jailbreaking Fails

Charge the iPhone for 30 minutes. A computer or iPhone charger can be used to charge the device.
Turn the iPhone off or hold down 'Home' and 'Power' on the phone until it powers down.
Connect an iPhone/iPod USB cable to a computer that has iTunes installed on it. Do not connect to the phone yet.
Open iTunes on the computer.
Hold down the phone's 'Home' button. Then, connect the iPhone to the iPhone/iPod USB cable. Keep holding 'Home' until a 'Connect to iTunes' screen appears on the phone. A dialog box opens inside of iTunes. Click 'OK' in this box.
Click the iPhone menu in the iTunes Source Pane, which is under 'Devices.' Then, click the 'Summary' tab in iTunes.
Click 'Restore' inside iTunes. A small box appears. Click 'Restore' inside this box. The iTunes Software goes into 'Restore' mode. Follow the instructions inside iTunes to restore your iPhone to your preferences (via a previous iPhone backup, with or without a software update, etc.).
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How to Draw Arrows in PowerPoint on a MacBook

Click on the 'Home' tab in PowerPoint on your Macbook.
Click 'Shape' from the Insert section of the ribbon. It's between the Picture and Media buttons.
Click on an arrow from the Shape menu. Click and drag on the slide to draw the arrow.
Click to select the arrow. A new tab appears at the top of the window labeled 'Format.' Click on the tab to format the arrow. The buttons on the tab give you options for changing the appearance of the arrow -- or any shape.
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How Do I Delete a Wireless Password for Apple Mac?

Open 'Finder.' In your Finder window, navigate to the 'Applications' folder and then into the 'Utilities Folder.' After you've opened the Utilities Folder, find 'Keychain Access.'
Double-click on 'Keychain Access.' When the program opens, you will see a window divided into three panes. Before proceeding, click 'Login' in the Keychains pane at the top left. Immediately below, in the 'Category' pane, click 'All Items.'
Scroll through the list of saved passwords on the right. If you have a large number of passwords, you can sort them according to name or kind to make the list easier to navigate. To resort the list, click on 'Name' to sort alphabetically or 'Kind' to sort by type of password. When you've located the name of the wireless network password you wish to delete, click on that name once to highlight that keychain entry.
Press the 'Delete' key on your keyboard. A dialog will pop up asking you to confirm that you want to delete the keychain. Make sure you have selected the correct keychain entry, because you cannot recover deleted keychain password entries. When you have confirmed the proper entry, click 'Delete' to remove the wireless password you selected.
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How to Stop the Spinning Wheel on Apple

Use the keystroke sequence 'Command+Option+Escape' if the spinning wheel does not resolve itself after 30 seconds. The resulting list of programs currently running will indicate which one is not responding. Select the offending program with your cursor and click the 'Force Quit' button at the bottom of the list.
Restart the computer while holding down the 'Command+S' keys if you experience persistent spinning wheels. Keep pressing until you see the gray screen with the Apple logo, then release. The screen will now be black and display lines of data. At the end of the text will be an old-fashioned computer prompt. This is 'single-user 'mode and allows you to fix problems in the underlying software. Type the command 'fsck -y,' including the space, and press 'Enter.' This will fix minor file errors and often cure the beach ball problem.
Open the Disk Utility program in the Utilities folder on your hard drive. Select the main drive in the window presented and click the button 'Repair Permissions.' This will fix aberrant behavior in some programs that have had their read/write status corrupted for some unknown reason.
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How to Get My Viewsonic Projector to Work on My Mac

Check the type of 'video out' connector your Mac has. Typically Macs feature a DVI or a Micro-DVI port. Consult your computer's user documentation if you are unsure.
Connect your Mac to the projector using the connection cable provided with the projector. If you need to use a converter cable as well, connect it to the Mac.
Turn on your projector.
Click the Apple logo on the task bar. Click 'Displays.' Click 'Detect Displays.'
Change the resolution for the projector if needed. Your ViewSonic Projector will now work with your Mac.
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