Black Screen on iPhone for a LONG time During Restore to Back Up?

Question

I am in the process of trying to sync my iPhone 5 to my computer which just had a brand new hard drive installed.  I followed these directions below that I found in one of these discussions.  Everything was going great, but when I completed step #8, and selected "Restore from Back Up",  I saw a message telling me to keep my iPhone connected to my computer.  My phone then turned off and went black.  That was at least two hours ago.  It is still connected to my computer.
What should I do?  Try to turn it on, or leave it black in hopes that there is some kind of work happening 'behind the scenes'?  Can anyone help?
Here is the procedure I followed:
This is for those of you who have no backup of your current iTunes library, and are replacing the computer your phone normally syncs with or are just replacing the hard drive. Again, no backup.
By design, the iPhone will sync iTunes content with one computer at a time. Any attempt to sync such content with a second computer will result in ALL iTunes content being first erased from your phone & then replaced with the content from the second computer. This is a design feature and cannot be overridden. Because you replaced your computer, or hard drive, your phone will see this as a "new" computer. The iTunes content sync is one way: computer to phone. If you have photos that were synced to your phone or music ripped on your own that were not backed up, you will first have to extract them from your phone using third party software, before you do anything else, as Apple makes no provision to do so:
If on a Mac, use this:
http://www.ecamm.com/mac/phoneview/
If on a PC, use this:
http://www.wideanglesoftware.com/touchcopy/index.php
Once you've done that, do the following in the order specified:
1. Disable auto sync when an iPod/iPhone is connected under iTunes>Preferences>Devices(under Edit menu if using Windows).
2. Make sure you have one contact & one event in the supported applications on your computer(iCal & Address Book on a Mac, Windows Address Book or Outlook if using Windows). These entries can be fake, doesn't matter, the important point is that these programs not be empty.
3. Connect your phone, iTunes running, do not sync at this point.
4. Store>Authorize this computer.
5. File>Transfer Purchases(To make sure all purchased content on your phone will be in your iTunes library).
6. Right click your phone in the left device pane & select "Reset warnings".
7. Right click again and select "Backup".
8. Right click again & select "Restore from Backup", select the backup you just made. When prompted to create another backup, decline.
9. This MUST be followed by a sync to restore your iTunes content, which you select from the various tabs, You'll get a popup regarding your contacts & calendars asking to merge or replace, select "Merge".
Your phone should look just like it did when you started, with no data loss.
You should be good to go.

Answer 1

You should be posting in the iPhone forum here:
https://discussions.apple.com/community/iphone