: The tools and files mentioned here are for educational purposes. Proceed at your own risk, but enjoy the journey back to 2012.
: Open the CoolBooter app, select iOS 6.1.3 as your secondary version, and follow the prompts to install it. Ensure you have enough storage space. Boot into iOS 6
If you need a functional secondary device, consider staying on iOS 8.4.1 with tweaks to speed it up (disable animations, reduce transparency). But for the purest, fastest experience on an iPod touch 5—
to iOS 6 requires specialized tools and a jailbroken state, as Apple stopped "signing" iOS 6 for this device years ago. Currently, the most common way to achieve an iOS 6 experience on this device without saved SHSH blobs is through or tethered restores . Prerequisites for Downgrading
: This performs a deeper downgrade to iOS 6, but the device will require a computer to boot every time it is turned off or restarts.