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sunst0rm

iOS Tether Downgrader for checkm8 devices

Based on my guide

please, please, please, DO NOT ask for help in any other discord. Developers not affiliated with sunst0rm are sick of getting issue after issue due to sunst0rm and I just don't want to irritate them, instead join the discord server linked below.

Also: please DO NOT open issues at futurerestore when using sunst0rm, they're almost always NOT the fault of futurerestore.

See this guide for help

You can also watch this youtube video for a video tutorial

If you still have problems, join the Discord server for help

Linux version by MCApollo: here ( only tested on arch )

If you want, please checkout the dev branch where my bash rewrite lives and give feedback / report issues, it would be really useful!

Notes

  • It is a tethered downgrade meaning you will have to boot tethered every single time from your PC if your battery dies or if you reboot your phone.
  • On A10-A11 devices crucial functionality such as the Home Button, Audio, Microphone, Vibration does NOT work at the moment.
  • You should NOT be tether downgrading your main device it is only recommended to tether downgrade a second device.
  • For some frequently asked fixes go here for help.

Requirements:

Make sure to use the forks listed above.

How to use?

Option (short) Option (long) Description
-i IPSW --ipsw IPSW Path to IPSW
-t SHSH2 --blob SHSH2 Path to SHSH2
-r --restore Restore mode
-b --boot Boot mode
-d BOARDCONFIG --boardconfig BOARDCONFIG BoardConfig to use (E.g: d221ap)
-kpp --kpp Use KPP (A9 or lower)
-id IDENTIFIER --identifier IDENTIFIER Identifier to use (E.g: iPhone10,6)
--legacy Use Legacy Mode (iOS 11 or lower)
--skip-baseband Skip Baseband sending, do NOT do this if your device does have baseband this argument is only ment to be passed when your device does not have baseband such as WiFi only iPads.

Restoring

python3 sunstorm.py -i 'IPSW' -t 'SHSH2' -r -d 'BOARDCONFIG'
  • Use --kpp if you have KPP, otherwise don't add
  • A10+ Devices do NOT have KPP so do not add --kpp if you are attempting to tether downgrade an A10+ device, A7-A9X devices does have KPP so that means you will pass --kpp and to clear things up having KPP or not does not change the fact if you are able to tether downgrade your device.

Booting

python3 sunstorm.py -i 'IPSW' -t 'SHSH2' -b -d 'BOARDCONFIG' -id 'IDENTIFIER'
  • Use --kpp if you have KPP, otherwise don't add
./boot.sh

Credits:

M1n1Exploit - Some code from ra1nstorm

Arna13 - Writing an easy to understand guide

swayea - Logo's

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  • Python 96.1%
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