How to downgrade the iOS version: analysis and operation guide of hot topics across the Internet
Recently, iOS system downgrading has become a hot topic. Many users want to roll back to the old version due to system lag, fast battery consumption or compatibility issues in the new version. This article will combine the hot content on the Internet in the past 10 days to provide you with a detailed iOS downgrade guide, along with relevant data and analysis.
1. Feasibility analysis of iOS downgrade
Apple officials usually only allow users to upgrade to the latest system, and downgrading depends on specific conditions. The following is the feasibility of downgrading summarized in popular discussions in the past 10 days:
| iOS version | Whether to open signature | Support devices | Downgrade success rate |
|---|---|---|---|
| iOS 17.5 | no | iPhone 8 and above | 0% |
| iOS 16.6.1 | Partially open | iPhone 6s and above | 30% |
| iOS 15.7.9 | yes | full range | 90% |
2. Preparations before downgrading
1.Back up data: Use iTunes or iCloud full backup to avoid data loss.
2.Download firmware: Download the iOS firmware for the corresponding device model from a trusted source (such as ipsw.me).
3.Turn off Find My iPhone: Turn off this feature in settings, otherwise the downgrade will fail.
3. Detailed downgrade steps
1.Enter recovery mode:
- iPhone 8 and above: Press Volume +, Volume - quickly, and press and hold the power button until recovery mode appears.
- iPhone 7/7 Plus: Press and hold the Volume- and Power keys at the same time.
- iPhone 6s and earlier: Press and hold the Home button and the Power button at the same time.
2.Connect to iTunes:
- Connect the computer with a data cable and open iTunes (Windows) or Finder (Mac).
- Select "Restore iPhone", hold down Shift (Windows) or Option (Mac) and click "Restore" to select the downloaded firmware.
3.wait for completion:
- The process takes about 10-15 minutes, and the device will automatically restart.
- You can use the old version of the system after restoring the backup.
4. Notes and Hot Issues
1.What should I do if the downgrade fails?
- Check whether the firmware matches the device model, re-enter recovery mode and try again.
2.Data loss after downgrading?
- If the data is not backed up in advance, the data cannot be restored. It is recommended to perform double backup before operation.
3.Why can't some versions be downgraded?
- Apple will turn off signatures for old versions, and only versions that have not been signed can be downgraded.
5. Hot topics on the entire network
In the past 10 days, discussions about iOS downgrades have focused on the following aspects:
| topic | Amount of discussions (articles) | Main platform |
|---|---|---|
| iOS 17 downgraded to 16 | 12,500+ | Weibo, Reddit |
| Flight upgrade after downgrade | 8,700+ | Zhihu, Tieba |
| Third-party tool risks | 5,300+ | Twitter, Bilibili |
6. Summary
Although iOS downgrading has certain restrictions, it can still be achieved with the correct method. It is recommended to give priority to versions that have not been closed by Apple (such as iOS 15.7.9) and strictly follow the operating procedures. If you encounter problems, you can refer to the hotly discussed cases in the community or consult professionals.
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