在iPhone/iPod/iPad恢复模式下恢复

crwdns2935443:0crwdne2935443:0

= crwdns2915112:0crwdne2915112:0 = crwdns2861241:0crwdne2861241:0

crwdns2936315:0crwdne2936315:0

crwdns2936311:0crwdne2936311:0

crwdns2947189:0crwdne2947189:0

crwdns2915892:0crwdne2915892:0

***''IMPORTANT: AS OF 2/14/2022 THIS GUIDE IS OBSOLETE AND WILL NOT BE UPDATED BY THE AUTHOR. This procedure applies to really old models of iPhones and iPod Touches. iPhones that use this procedure are largely affected by the US 3G sunset and activation blocks (outside of the 6s in the US). For many affected iPod Touch models the issue is software: They often run iOS releases largely left behind by developers (known as "single digit" releases). In addition to these issues, many devices are near the end of their useful life (if not forcefully retired by carriers due to the 3G sunset, or crippled Sprint variants lacking VoLTE or domestic SIM unlocking).''***

***''If you own one of these these steps still work but the guide is no longer updated, or supported. Since the guide is still potentially useful I decided to leave it available for public viewing for the foreseeable future.''***

++***Guide notes*** ++

* ***(iPhone only)*** This method only works up to the iPhone 6s. The current method varies by the device on newer models.
* ***iCloud warning:*** Devices running iOS 7 or newer will have an iCloud activation lock. If you restore a device with unknown credentials, you will no longer be able to use the device. Furthermore, devices with an unofficial iCloud unlock will no longer work.
* With iOS 8 and up, the device data is encrypted. ***If you need your data, you must guess the password.***
* ***''WARNING: ALL DATA ON THE DEVICE WILL BE ERASED! IF POSSIBLE, GUESS THE PASSWORD.''***
If you purchased a used iDevice or forgot the password on your current device, this guide will show you how to restore the device so you can use it again. If you did not forget the password but are having problems that prevent a normal recovery, this method can also be used for this purpose.