This topic created in 4185 days ago, the information mentioned may be changed or developed.
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Totoria Nov 15, 2014 via iPad  1
不是，A4以上设备全部不可以！
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pH Nov 15, 2014
要真这样，开发者都哭了
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4
m2q1n9 Nov 15, 2014 1
iOS5后SHSH就没用了，转用APTicket了
具体可看 http://blog.iphone-dev.org/post/6952986620/blob-monster Starting with the iOS5 beta, the role of the “APTicket” is changing — it’s being used much like the “BBTicket” has always been used. The LLB and iBoot stages of the boot sequence are being refined to depend on the authenticity of the APTicket, which is uniquely generated at each and every restore (in other words, it doesn’t depend merely on your ECID and firmware version…it changes every time you restore, based partly on a random number). This APTicket authentication will happen at every boot, not just at restore time. Because only Apple has the crypto keys to properly sign the per-restore APTicket, replayed APTickets are useless. |
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5
Starduster Nov 16, 2014 via iPhone
正好相反……是所有在售的iOS设备全部都不能降级，即使你有SHSH……
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