If downgrading becomes possible in the future, here are general steps to follow:
1. Backup Your Data: Use iCloud or Finder/iTunes to create a backup.
2. Download the IPSW File: Obtain the specific IPSW file for the version you want to downgrade to.
3. Connect Your Device: Use a USB cable to connect your iPhone to your computer.
4. Enter DFU Mode: Follow the specific steps for your device model to enter DFU mode.
5. Restore the Device: Use Finder or iTunes to select the IPSW file and restore your device.