Running unsupported iOS versions on older devices involves navigating complex technical hurdles. The author demonstrated iOS 6 on an iPod touch 3, a model officially limited to iOS 5.1.1. Key components of iOS include iBoot, the kernelcache, DeviceTree, and various firmware for coprocessors. For the iPod touch 3, the author developed a script for generating a compatible iOS 6 restore image, highlighting the challenges of adapting DeviceTree and boot processes from a device that officially supports iOS 6, like the iPhone 3GS. The main obstacle encountered was the DeviceTree, which underwent significant changes between iOS 5.1.1 and 6.0. The author created a Python script to automate the process of diffing DeviceTrees, allowing adjustments for the iPod touch 3. iBoot required only minor modifications, such as patching signature checks and ensuring the new properties were populated correctly. The kernelcache posed the greatest challenge, as the iPod touch 3 was never intended to run iOS 6. The author devised a method to load kernel extensions similarly to older Mac OS X systems, eventually settling on creating a proper kernelcache using a tool called kcgen. In addition to the kernelcache and DeviceTree, the author had to modify the restore ramdisk and root filesystem. This involved patching system files to accommodate iOS 6 capabilities while maintaining compatibility with iOS 5.1.1 features. The entire process showcases the intricate work needed to push unsupported software onto older hardware, requiring a deep understanding of iOS internals, file structures, and boot processes. All scripts and modifications are available in the SundanceInH2A repository for those interested in similar endeavors.