Solution to iOS 5.1 Download Problems

Looks like Apple's servers are taking a pounding with all of the demand for iOS 5.1.  If you have gotten the error, "There was a problem downloading the software for the iPhone.  The Network connection timed out.", find the solution below:

MAKE SURE TO BACKUP YOUR DEVICE BEFORE UPGRADING.

1.  Download the IOS 5.1 Firmware directly from Apple by clicking on the links below, save the file to your desktop:

iOS 5.1 (build 9B176) is compatible with iPad 1, iPad 2, iPhone 3GS, iPhone 4, iPhone 4S, iPod touch 3rd & 4th gen, and iPad 3. Additional builds are available for Apple TV 2 and Apple TV 3.

• iPad 1
• iPad 2 Wi-Fi
• iPad 2 GSM (AT&T)
• iPad 2 CDMA (Verizon)
• iPad 2,4
• iPhone 3GS
• iPhone 4 GSM (AT&T)
• iPhone 4 CDMA (Verizon)
• iPhone 4S
• iPod touch 3G
• iPod touch 4G
• iPad 3 Wi-Fi
• iPad 3 GSM
• iPad 3 CDMA
• Apple TV 2 (9B179b1)
• Apple TV 3 (9B179b1)

2.  After downloading the desired firmware, you can shift-click (PC) or option-click (Mac) the "Update" button in iTunes. A file dialog will open and let you choose the downloaded ipsw-file from your desktop.

3. Proceed with the upgrade as usual.

4. If you get Error -3002 at this point, try to do a Restore, rather than an Upgrade - remember to shift-click (or option-click on a Mac).

Please let me know if you have any issues with this procedure in the comments section below.

Check this post for similar solutions for iOS 5: http://obscureport.blogspot.com/2011/10/solution-for-ios-5-download-problems.html