UPDATED: 2024-05-02
- Reddit mirror: https://www.reddit.com/r/iOSDowngrade/comments/j1x7iv/downgrade_and_dualboot_status_of_almost_all_ios/
- GitHub Gist mirror: https://gist.github.com/LukeZGD/9d781f1b03a69fa46869384a9407a41a
- As of updating this post, there is a downgrade tool that utilizes a SEP exploit released. However its device support is currently limited: https://limefix.tech/?product=limefix-sep-utility-testing
- Save SHSH blobs for signed iOS versions using TSS Saver or blobsaver
- GitHub repo for futurerestore nightly: https://github.com/futurerestore/futurerestore
- Delay OTA Guide (updating only): https://ios.cfw.guide/updating-blobless