Legacy iOS Kit can be used to restore iPod touch 4th gen devices to iOS 7.1.2, a version that these devices did not support.
WARNING: This is a tethered upgrade and has many broken device features. Not recommended unless you know what you are getting yourself into.
Usage
- Connect your device to your PC/Mac.
- Start the script by running
restore.sh
- Select Restore/Downgrade -> iOS 7.1.2
- Download/select the IPSW for iPhone3,3 - iOS 7.1.2.
- Download/select the IPSW for iPod4,1 - iOS 6.1.6.
- Start the restore.
- Enter kDFU/pwnDFU mode when prompted.
- When the restore is done, the device should boot to recovery mode.
Tether Boot
The upgrade to iOS 7.1.2 is tethered. This means that a PC/Mac is required to boot every time.
- Connect your device to your PC/Mac.
- Start the script by running
restore.sh
- Select Just Boot -> iOS 7.1.2
- Enter kDFU/pwnDFU mode when prompted.
- The device should now boot.
- For cli command of this, here:
./restore.sh --just-boot --device=iPod4,1 --build-id=11D257
What works
Here are the device features that work with this upgrade.
- Wi-Fi (very spotty, there are many instances that it needs to be toggled off and on again)
- Multitouch
- Jailbreak (Cydia, tweaks, IPA installs, etc)
What does not work
There are a lot of broken features that come as a result of this upgrade, which makes this procedure not recommended to do.
- Bluetooth
- Audio
- Cameras
- Battery always shows as 100%
- Rotation and other sensors
- Possibly even more broken stuff
- Some system apps also crash on jailbroken installs
- Apps that crash: Safari, Weather, Mail, Calculator
- Workaround: Install AppSync, then install app/ipa alternatives (example: Chrome as a substitute for Safari)