How to upgrade iPhone 4s after jailbreaking
As the iOS system continues to be updated, many users of older devices such as iPhone 4s may encounter difficulties in upgrading the system, especially if the device has been jailbroken. This article will introduce in detail how to upgrade the system after jailbreaking the Apple 4S, and provide hot topics and hot content in the past 10 days as a reference.
1. Hot topics and content in the past 10 days
| Date | hot topics | Hot content |
|---|---|---|
| 2023-10-01 | iOS 17 released | Apple releases iOS 17 system, supports upgrades for multiple devices |
| 2023-10-03 | iPhone 15 pre-sale | iPhone 15 series starts pre-sales, first-day sales break record |
| 2023-10-05 | Problems with upgrading old equipment | Users of older devices such as iPhone 4s report difficulty in upgrading |
| 2023-10-07 | Jailbreak tool update | New version of jailbreak tool supports iOS 16.6 system |
| 2023-10-09 | Apple Security Vulnerabilities | Apple fixes multiple security vulnerabilities and recommends users to upgrade as soon as possible |
2. Upgrade steps after jailbreaking Apple 4S
1.Back up data:Be sure to back up all important data on your device before upgrading. Backup can be done via iTunes or iCloud.
2.Factory reset: Since the device has been jailbroken, direct upgrade may cause system instability. It is recommended to restore factory settings through iTunes first.
3.Download firmware: Visit Apple’s official website or third-party firmware download website to download the latest firmware suitable for iPhone 4s (currently up to iOS 9.3.6).
4.Upgrade via iTunes: Connect the device to the computer, open iTunes, hold down the Shift (Windows) or Option (Mac) key and click "Restore iPhone", and select the downloaded firmware to upgrade.
5.Reactivate device: After the upgrade is completed, follow the prompts to reactivate the device and restore the backed up data.
3. Precautions
1.Jailbreak risk: Upgrading a jailbroken device may cause data loss or system crash, so caution is recommended.
2.Compatibility issues: iPhone 4s only supports iOS 9.3.6 and cannot be upgraded to a higher version of the system.
3.Performance impact: The device may become slower after the upgrade. It is recommended to weigh whether an upgrade is needed.
4. Frequently Asked Questions
Q: Can I still upgrade through OTA after jailbreaking?
A: It is not recommended to upgrade via OTA, as it may cause the device to fail to start. It is recommended to use iTunes for a complete upgrade.
Q: Will I lose my jailbreak status after upgrading?
A: Yes, the jailbreak status will be cleared after upgrading and you need to jailbreak again.
Q: How to downgrade to the old version of the system?
A: Apple has closed the verification channel for the old version of the system, and downgrading is currently not possible.
5. Summary
As an old device, Apple 4s requires special attention to compatibility and stability issues when upgrading the system. Especially for jailbroken devices, the upgrade process is more complicated. It is recommended that users fully understand the risks before upgrading and follow the steps provided in this article. If you are unfamiliar with the upgrade process, you can seek professional help.
Through the above steps, you can safely upgrade your jailbroken iPhone 4s to the latest available system version. Although iOS 9.3.6 is already relatively old, the upgrade can fix some security vulnerabilities and improve the stability of the device.
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