Ramdisk not supported

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

Archived firmware 6 no longer signed
iOS 1.1.5 4B1 165.48 MB Download
iOS 1.1.4 4A102 165.48 MB Download
iOS 1.1.3 4A93 165.47 MB Download
iOS 1.1.2 3B48b 157.90 MB Download
iOS 1.1.1 3A110a 150.59 MB Download
iOS 1.1 3A101a 150.58 MB Download