One reason for Error 3194 is when your "Hosts" file blocks Apple from signing your firmware. Depending on what you are trying to restore to, and how you are trying to restore. If you want Apple to sign your firmware you will need your Hosts file let Apple sign it. If you want to sign it yourself and you have the SHSH to sign the firmware, then use TinyUmbrella to help you sign the firmware.
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One reason for Error 3194 is when your "Hosts" file blocks Apple from signing your firmware. Depending on what you are trying to restore to, and how you are trying to restore. If you want Apple to sign your firmware you will need your Hosts file let Apple sign it. If you want to sign it yourself and you have the SHSH to sign the firmware, then use TinyUmbrella to help you sign the firmware. If you want to Unlock your iPhone you will most likely need a Custom Firmware and possibly TinyUmbrella to help you depending on the circumstance.
One reason for Error 3194 is when your "Hosts" file blocks Apple from signing your firmware. Depending on what you are trying to restore to, and how you are trying to restore. If you want Apple to sign your firmware you will need your Hosts file let Apple sign it. If you want to sign it yourself and you have the SHSH to sign the firmware, then use TinyUmbrella to help you sign the firmware.