diosra2’s blog

iOSの脱獄、ダウングレード

Downgrade

iPhone 3GS

・iOS

Serial Number (設定Appから確認できます。)を 「xxYWWxxxxx」 とすると、

Y = 製造年 [2009年:Y = 9, 2011年:Y = 1]

WW = 製造週 [第1週目: WW = 01, 第45週目:WW = 45]

例: 『8992988701』(3桁目が94,5桁目が2,9)なら200929週目

Serial number

~939

940~945

946~102(?)

103(?)~133

134~225(?)

226(?)~

BootRom

Old

Old or New

New

New

New

New

iPhoneOS 3.x

Yes (24kpwn)

Yes (24kpwn or alloc8 explit)

Yes(?) (alloc8 exploit)

No(?)

No

No

iOS 4.x

Yes (24kpwn)

Yes (24kpwn or alloc8 exploit)

Yes (alloc8 exploit)

Yes (alloc8 exploit)

Yes(?) (alloc8 exploit)

No

iOS 5.x

Yes (24kpwn)

Yes (24kpwn or alloc8 exploit)

Yes (alloc8 exploit)

Yes (alloc8 exploit)

Yes (alloc8 exploit)

Yes (alloc8 exploit)

iOS 6.x

Yes (24kpwn)

Yes (24kpwn or alloc8 exploit)

Yes (alloc8 exploit)

Yes (alloc8 exploit)

Yes (alloc8 exploit)

Yes (alloc8 exploit)

 

・BaseBand

Serial number

~133

134~

iPad BB

Yes

No(Brick)

Downgrade 05.13.04

Yes

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