RUNNING UNSUPPORTED IOS ON DEPRECATED DEVICES

Summary from the TLDR Dev newsletter

This dev successfully ran iOS 6 on an iPod touch 3, a device officially limited to iOS 5.1.1, by reverse engineering and modifying various iOS components. This involved patching the DeviceTree and iBoot, creating a kernelcache by adapting macOS tools, and making many changes to the root filesystem, including Bluetooth and Wi-Fi firmware adjustments.