Ramdisk not supported

The tool can't boot a ramdisk on this device. Apple's official firmware for it is listed below.

iOS firmware — currently signed 1

Apple only allows restoring to a signed version.

iOS 7.1.2 11D257 1.12 GB 2014-06-30 Download IPSW
Archived firmware 28 no longer signed
iOS 7.1.1 11D201 1.12 GB 2014-04-22 Download
iOS 7.1 11D169 1.12 GB 2014-03-10 Download
iOS 7.0.6 11B651 1.12 GB 2014-02-21 Download
iOS 7.0.4 11B554a 1.12 GB 2013-11-15 Download
iOS 7.0.3 11B511 1.12 GB 2013-10-22 Download
iOS 7.0.2 11A501 1.12 GB 2013-09-26 Download
iOS 7.0 11A465 1.12 GB 2013-09-18 Download
iOS 6.1.3 10B329 895.40 MB Download
iOS 6.1.2 10B146 895.11 MB Download
iOS 6.1 10B144 895.04 MB Download
iOS 6.0.1 10A523 887.53 MB Download
iOS 6.0 10A403 887.53 MB Download
iOS 5.1.1 9B208 783.51 MB Download
iOS 5.1.1 9B206 783.39 MB Download
iOS 5.1 9B176 783.54 MB Download
iOS 5.0.1 9A405 790.65 MB Download
iOS 5.0 9A334 774.33 MB Download
iOS 4.3.5 8L1 666.60 MB Download
iOS 4.3.4 8K2 666.66 MB Download
iOS 4.3.3 8J2 666.20 MB Download
iOS 4.3.2 8H7 666.17 MB Download
iOS 4.3.1 8G4 665.96 MB Download
iOS 4.3 8F190 669.73 MB Download
iOS 4.2.1 8C148 624.23 MB Download
iOS 4.1 8B117 589.85 MB Download
iOS 4.0.2 8A400 579.24 MB Download
iOS 4.0.1 8A306 579.24 MB Download
iOS 4.0 8A293 579.23 MB Download