ITunes Errors/31xx

Error 3123

Something dealing with movie rentals.

Error 3191

QuickTime corrupted must reinstall before iTunes will work or Turn off Compatibility Mode for QuickTime.

1. Right-click on the QuickTimePlayer application (located in C:Program FilesQuickTime) and choose Properties from the shortcut menu.
2. In the Properties window, click on the Compatibility tab Deselect the checkbox labeled “Run this program in compatibility mode for.”
3. Click Apply.
4. Close the Properties window

Error 3194

Occurs when trying to install an old firmware and Apple's server disallows the installation. The only solution is to have SHSH backup and modify the hosts file to point to Saurik's Cydia Server where they are backed up (or localhost if you have it yourself).

Error 3195

• There is no SHSH for the firmware.
• This is the same as "This device isn't eligible for the request build." but with an cache error.