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 21 no longer signed
iOS 7.1.1 11D201 1.12 GB 2014-04-22 Download
iOS 7.1 11D167 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 892.69 MB Download
iOS 6.1.2 10B146 892.27 MB Download
iOS 6.1 10B141 892.22 MB Download
iOS 6.0.1 10A523 884.87 MB Download
iOS 6.0 10A403 884.99 MB Download
iOS 5.1.1 9B206 791.29 MB Download
iOS 5.1 9B176 791.35 MB Download
iOS 5.0.1 9A405 798.22 MB Download
iOS 5.0 9A334 781.84 MB Download
iOS 4.2.10 8E600 652.74 MB Download
iOS 4.2.9 8E501 652.81 MB Download
iOS 4.2.8 8E401 652.75 MB Download
iOS 4.2.7 8E303 652.80 MB Download
iOS 4.2.6 8E200 651.93 MB Download