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支持完美越狱的设备包括iPhone 3GS, iPhone 4, iPhone 4-CDMA, iPad 1, iPod touch 3G, iPod touch 4G，并且同时放出越狱工具redsn0w 0.9.10b1下载地址：包括了Mac和Windows版：
如果你的设备支持完美越狱但是IOS固件没到5.0.1，那么赶紧去更新吧！如果你已经是IOS 5.0.1非完美越狱，那么你有2个选择：运行红雪0.9.10（不要选择安装Cydia）；或者把Cydia更新，然后搜索Corona 5.0.1 Untether安装即可。
If you have one of those devices and are not on 5.0.1 yet, update now! The SHSH window is still open for 5.0.1 If you unlock via ultrasn0w or gevey, make sure you only get to 5.0.1 via a custom IPSW! See the guides at places like iClarified.com if you don’t know how. Once you’re at 5.0.1, use the latest redsn0w 0.9.10 to both jailbreak and untether.
If you’re already at 5.0.1 with a tethered jailbreak, you have two choices: either run redsn0w 0.9.10 over your current jailbreak (deselect “Install Cydia” if you do that), or install the Cydia package prepared by the chronic devteam. The patches are the same regardless of which you choose.
Some of you are using a hybrid 5.0/5.0.1 configuration. If so, do not attempt to install this untether over that setup! You will most likely get into a reboot cycle. Do a sync and fresh restore to 5.0.1 then install the jailbreak + untether.