redsn0w_win_0.9.10b6不完美越狱A4设备(IOS5.1)！

Update #1:??First, please read and re-read the above warnings!??With all of that in mind, we realize that some of you non-A5 jailbreakers are itching to get to 5.1, even though there seems to be no compelling new feature there. Because of geohot’s limera1n exploit, those with devices earlier than the iPad2 can test the 5.1 jailbreak waters if they really want to, using redsn0w 0.9.10b6.??Here’s what you need to know: ?This is a *tethered* 5.1 jailbreak for non-A5 devices.??You’ll need to use redsn0w to “Just Boot” your device every time it power cycles, otherwise jailbreak apps won’t work (neither will Safari). ?If you use ultrasn0w for your carrier unlock, be sure to use a custom IPSW to get to 5.1 first!??Don’t ever restore to a stock Apple IPSW!??Use redsn0w’s “Custom IPSW” button to create a NO_BB_* version of the 5.1 IPSW and restore to that instead of the stock one.??(That option is available only to 3GS and iPhone4-GSM owners.)??ultrasn0w itself will be updated for 5.1 in the next few days (same baseband support, not 5.1’s baseband). ?If you’re lucky enough to have an old-bootrom 3GS, this jailbreak is actually untethered (redsn0w will figure that part out automatically). ?While we were at it, we added @pod2g’s steaks4uce exploit to support MC models of the iPod touch 2G (whose last firmware was 4.2.1).??So now redsn0w will auto-detect and jailbreak all versions of that older device. ?iBooks won’t work until a future update of redsn0w =700) window.open('http://images.tgbus.com/attachments/Day_120308/240_1074497_835439c7b3a1357.jpg');" onload="if(this.offsetWidth>'700')this.width='700';if(this.offsetHeight>'700')this.height='700';" > 大意：每次需要红雪引导启动，越狱IOS5.1，暂时不支持A5设备。仍然完美越狱3GS旧版bootrom。ibooks无法使用。 redsn0w_win_0.9.10b6.zip (14553 K) 下载次数:4989

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这是啥呀

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红雪你都不知道啊？？？

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完美的不用用这个？