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Téma: Downgrade a obnoveni iOS 5

Tak jsem pro zajimavost otestoval redsn0w na downgrade na 5.0.1 dokud apple podepisuje 5.1.1. Puvodni zamer byl v tom zda je mozno timto zpusobem obnovit 5.1.1 az nebude podepisovan a fw bude treba uzivatelskym zasahem poskozen.

Vysledek:
redsn0w dokaze downgrade na 5.0.1, potřeba oba firmwary a ulozene shsh na cydia serveru, tinyumbrella 5.11.01.
Lokalne ulozene shsh mě nefungovali, po ukoneni procesu downgrade zustal iPhone 4S v recovery modu, pres TU proveden exit recovery a vse OK.

Obnova 5.1.1. s nejvetsi pravdepodobnosti to vypada, ze touto verzi redsn0w pujde i obnovit pozkozeny fw 5.1.1. Lokalni shsh opet nefungovalo. potreba je pouze fw 5.1.1. Pro zamezeni overeni na servrech apple spustena TU a TSS server( redirect v hosts). Obnova tovarniho nastaveni 5.1.1 - OK .

Pripadne dalsi postrehy prosim pridavejte.

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Re: Downgrade a obnoveni iOS 5

Tak moje domněnky jsou potvrzeny od redsn0w :-)))

A few months back we released a redsn0w feature that lets you downgrade A5+ devices from 5.1.1 to anything lower (if you had saved blobs).  Unfortunately once the 5.1.1 window closes, redsn0w’s 5.x downgrade feature will no longer work.  Most A5+ users will not be able to downgrade.  So if you’re an A5+ owner up at 6.0 when the 5.1.1 window closes, you’ll be stuck there without a jailbreak for now.

We’re happy to report there are some serious deficiences in the 5.x restore process that are permanently exploitable. They’ll never be fixable by Apple because they’re all self-contained in the 5.x IPSWs.  Here’s the breakdown:

    A4 devices and 3GS will always be downgradable (and jailbreakable) with saved blobs due to limera1n.  The tethered iOS6 jailbreak for those devices (and untethered for old-bootrom 3GS) will be out when Cydia and other important pieces are all working properly.
    iPad2 owners who have both 4.x blobs and 5.x blobs will always be able to downgrade to those versions, even once you come up to 6.0 and the 5.1.1 window closes (don’t do that yet though!).  You need both 4.x and 5.x blobs to qualify for the 5.x downgrade even though you only wish to downgrade to 5.x (you need only your 4.x blobs to downgrade to 4.x)
    iPad3, i4S (and iPad2 owners who don’t satisfy #2) will always be able to RE-restore the current 5.x OS that’s already on their device.  So if you’re at 5.1.1 when the window closes (and you’ve saved your blobs), you’ll always be able to RE-restore to 5.1.1 again.  This makes the 5.1.1 jailbreak a lot less fragile — you don’t have to worry about messing up your install with funky extensions or getting into a boot loop, because you can always RE-restore from 5.1.1 to 5.1.1 again (or from 5.0.1 to 5.0.1 again, etc).  But once you fall off the 5.x train by restoring to 6.x, you’ll be stuck there until the next jailbreak.

Please be aware that RE-restores and iPad2 downgraded devices will always end up with the latest baseband (not the one that came with that firmware).  So don’t go near any of this if your unlock depends on the baseband version.

All of these features will be released shortly in a new version of redsn0w.  In the meantime please be sure you have your 5.1.1 blobs and stay at 5.1.1

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Re: Downgrade a obnoveni iOS 5

Prosím Ťa ako presne si to spravil môžeš mi poradiť lebo ja mám iPad2 a chcé spravit v poctate restore ale nejde mi to lebo furt hádze iTunes chybu a uz mám nervy zálohu shsh mám az po iOS 4.3.3 teraz mám 5.1.1 a nejde mi spravit ani downgrade. Prečítal som si kadeco alebo mám zablokovať kontrolu u Apple serveru TU a TSS servera

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Re: Downgrade a obnoveni iOS 5

V době kdy jsem to zkoušel tak byl 5.1.1. jeste podepisovanej a zhruba takto :

http://www.muj-ipad.cz/jak-na-downgrade … sn0w-video

o zaloze shsh pisu z lokalu me to nebralo ale po presmerovani na cydia servery to slo OK, ale pokud si prectes poradne muj posledni post tak redsn0w v nejblizsich dnech na to primo vydaji nastroj. Zkus pohledat na netu a nacist navody downgrade 5.1.1 na 5.0.1. Moje zkusenost je zde napsana a pak dej vedet jako to dopadlo, urcite to plno lidi tady potesi.

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Re: Downgrade a obnoveni iOS 5

Jeste jedna vec pujde to pouze pokud tam mas 5.1.1 jinak mas smolika. Downgrade nebo restore z jine verze na A5 strojich neni zatim mozny. Asi se zitra vydusim v praci a nekomu seberu 4S a zkusim to :-) na svejch zarizenich to pokud nemusim zatim testovat nebudu nechci jit do 6

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Re: Downgrade a obnoveni iOS 5

takto uz tento navod som skusal a skusil som to aj teraz
a skonci to vzdy takto
http://imgupload.sk/viewer.php?file=bsx … 5qia6y.png

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7 Naposledy upravil: UfOuN (09-10-2012 19:37:09)

Re: Downgrade a obnoveni iOS 5

hmm, chce to jen jedn firmware? pouzivas vzdalené blobs? mas na pozadi spustennou TU s redirekci na cydii? mas spravnou verzi FW pro tvoje zarizeni? zkus pouzit posledni verzi redsn0w redsn0w_win_0.9.14b2.zip vic me zatim nenapada

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Re: Downgrade a obnoveni iOS 5

Potrebuje 2 fmw iný fmw nebol pre ipad2 skúšal som aj lokálne shsh a aj vzdialené a skúšal som aj najnovší redsnow

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9 Naposledy upravil: UfOuN (09-10-2012 20:52:46)

Re: Downgrade a obnoveni iOS 5

nene, kdyz jsem to zkousel tak na downgrade to chtelo oba 5.0.1 i 5.1.1. ale jen na restore 5.1.1. jsem jako prvni dal rovnou 5.1.1 a uz se to na dalsi nezeptalo a vse probehlo. Zitra to zkusim..... teda pokud najdu dobrovolnika, jinak pockat na novou verzi co to bude umet urcite jak dev slibujou.

edit: ted jsem si vzpomnel ze mam v praci ve skrini ipad2 64 3G s 5.1.1 takze to zitra zkusim urcite, nebot na nej mam i shsh :-)))) jsem sam zvedavej a nedockavej..... jak to dopadne.

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Re: Downgrade a obnoveni iOS 5

tak som zvedavy lebo ja som skusal uz kadeco  furt rovnaky vysledok

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Re: Downgrade a obnoveni iOS 5

tak jsem zklamanej dopadl, jsem stejne jako ty :-( Zkousel jsem to horem dolem, vsemozny kombinace ale ee. Podle me tam jeste dochazi k nejaky sitove komunikaci se serverem apple a v dobe kdy jsem to zkosel byla jeste 5.1.1. podepisovana, chtelo by to udelat analyzu site a paketu kam to vsude jde ale nechtelo se me jiz do toho, 3 hodiny je uz docela dost :-). V praci jsem za dost silny firewalem, ale zkusim to jeste doma na 120 megovy primy laine ale neslibuju si od toho moc.
Zaver: predpoklad byl mylny a v soucasnosti postup na restore nefunguje. Vydrzet jeste chvilku do vydani nastroje od redsn0w jak je prislibeno a neaktualizovat na 6 (i zborene zarizeni) samozrejmosti je nutna zaloha SHSH

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Re: Downgrade a obnoveni iOS 5

Tak ako som hovoril nepovažujem sa za magora som šikovný čo sa týka takýchto veci som zvedavý kedy vydajú ten nový nástroj na downgrade

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Re: Downgrade a obnoveni iOS 5

to ja jsem o tobe nepochyboval :-) ale vim ze to slo, proto jsem kdysi zalozil toto tema a cekal ze bude nekdo laborovat a nezustane to ve finale zase na me :-) jinak ireb jak jsem cetl v jinem vlaknu nema cenu ani zkouset, nebot je zavisly na exploitu od limera1n a ten funguje jen na A4 zarizenich

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Re: Downgrade a obnoveni iOS 5

Ved toto ja som si precital snad cele www a vyskusal som nespocetne vela moznosti.
Jedina moznost je taka za tam dame custom FMW co nie je problem problem je to vytvorit big_smile

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15 Naposledy upravil: UfOuN (14-10-2012 07:47:54)

Re: Downgrade a obnoveni iOS 5

Tak a je to tady :-))))) Netino az to budes delat, dej sem v bodech navod pro ostatni, mysli ze bude hromada lidi po tom hladova :-D


Today we’re pleased to release redsn0w version 0.9.15b1, with significant new features supporting restoring to older firmware no longer being signed by Apple.  For brevity, we’ll list most of the new features in bullet form.  For more details, please feel free to drop by our comments section, or check out any upcoming guides on tutorial sites like http://iclarified.com

First, the high-level new feature list:

    restore from any 5.x iOS to any other (up, down or the same) 5.x iOS on all devices as long as you have the correct blobs (see more below)
    Cydia now included in the tethered 6.0 jailbreak on A4 devices
    automatically “Just Boot” tethered when qualifying A4 device connects in DFU mode
    untethered 6.0 jailbreak on old-bootrom 3GS
    untethered 6.0 hactivation on any 3GS or iPhone4
    directly restore pre-A5 devices to earlier firmware — no more complicated 15-step how-to’s with stitching, iTunes errors, and “hosts file” concerns
    fetch new signed blobs for any IPSW (present or future — no redsn0w update required) using Extras->SHSH Blobs->New
    block the BB update for any 3GS or iPhone4 restore (past, present, or future — no redsn0w update required) using Extras->Even More->Restore
    deactivate any iPhone, useful for testing your “official” unlock status through iTunes.  (Please only deactivate your own iPhone!)
    activation status shown on “Even more” page
    significantly more (very nerdy) info returned by “Identify” button when device is in Normal mode
    tethered jailbreak of ATV2 supported (but the only thing available for it is the SSH2 custom bundle available here — no Cydia yet.  Must use “Select IPSW” for tethered boot of ATV2 for now).
    auto-exit WTF mode for older devices with broken buttons
    any time a set of blobs is fetched remotely (from Apple or Cydia), redsn0w also saves them locally (and will check there first if you click “Local”)
    for your future restoring convenience, you should also submit all of your past and present TinyUmbrella blobs to Cydia if you haven’t done so yet.  Resubmitting is okay and won’t cause conflicts.

Here are more details on the iOS5-to-iOS5 restores for A5+ devices.  (Note: pre-A5 devices don’t have these restrictions — just follow the redsn0w prompts during the restore).

1. redsn0w now lets you restore an A5+ device from any iOS5 to any other iOS5 as long as you have correct 5.x blobs for the starting (current) and ending points of the restore

    APtickets eliminated “higher-version only” comparison of firmware restores (just like BBtickets did for the baseband)
    example restores supported by redsn0w if you have the correct blobs: 5.1.1-to-5.0.1, 5.0.1-to-5.1.1, 5.1.1-to-5.1.1, 5.0.1-to-5.0.1
    if you don’t have the blobs locally, let redsn0w try to fetch them remotely (redsn0w always tries both Apple and Cydia).  Any succesful remote fetch also saves a local copy too.

2. You DO NOT QUALIFY for iOS5-to-iOS5 restores if you got to your current 5.x via an OTA update

    the tickets saved by Cydia, redsn0w, and TinyUmbrella do not cover OTA update ramdisk images
    even if they did, it’s the “wrong kind” of ramdisk (you’d need to start at that earlier pre-OTA FW)
    devices fresh from factory or refurb may fall in the “does not qualify” category (your results will vary)
    it’s okay if you previously got to 5.x via an OTA update, as long as your current 5.x was installed via a normal iTunes restore.  All that matters is how you got to your current 5.x most recently
    redsn0w detects an OTA/normal-restore APticket mismatch very early, so if you don’t know your status there should be no harm in trying.  Any device in recovery mode after such a mismatch can boot normally again just by going back to “Even More” screen from the “Restore” screen (or use “Recovery Fix” if you quit redsn0w before doing that).

3. Unlike the A4 devices, redsn0w can’t (usefully) prevent the baseband updates of A5+ iPhones and iPads.

    and so, redsn0w automatically flashes the currently signed baseband when it does A5+ restores, even if those basebands didn’t come with the original firmware
    stay away from this if you have an unofficial unlock that isn’t supported by the newest baseband
    the least-tested baseband update code in redsn0w is for iPad2,3 and iPad3,2.  Please give any feedback on those iOS5 restores in the comments section below.

4. iPad2 owners (all three models) with saved 4.x blobs can use those instead, even from 6.x

    if you have both 4.x and 5.x iPad2 blobs, you can always get to 5.x via the 4.x blobs, even if you’re currently on 6.x
    you cannot get to 5.x from 6.x without the 4.x blobs (but you may still qualify for the iOS5-to-iOS5 restore described above)
    if somehow you have 4.x blobs but no 5.x blobs, you can still go down to 4.x from 6.x
    this only applies to iPad2 owners (they’re the only A5+ devices that ever had a public 4.x FW)
    redsn0w still supports (but doesn’t require) jailbreaking A5+ devices at 5.0.1 and 5.1.1.  Just head back to the first page after re-restoring to 5.x.  It’s always much faster to jailbreak those FW versions with a freshly-restored device, before letting iTunes restore from a saved userland backup.

And finally, some random details:

5. ultrasn0w isn’t yet updated for 6.x

    by now you probably should be taking advantage of the extremely cheap IMEI-based unlocks of iPhones sold by established online retailers like http:://cutyoursim.com
    still, IMEI-based unlocks don’t work in all cases.  We’ll announce when ultrasn0w is ported up to 6.x
    redsn0w will still hactivate your 3GS or iPhone4 if you run it before the device is activated.  Due to the current tethered 6.x JB status, redsn0w now hactivates 6.x without requiring subsequent tethered boots.  If you accidentally hactivate with redsn0w, use the “Deactivate” checkbox available from the Jailbreak screen, not the normal one in “Even more”

6. As always, redsn0w lets you “Fetch” the SHSH blobs currently flashed onto your pre-A5 device

    use this if you’re at 5.x or 4.x but without having saved your blobs when the window was open
    this is only useful when Apple is no longer signing the firmware, otherwise Cydia/redsn0w “New”/TinyUmbrella blobs are superior (but you’re welcome to fetch your 6.0 blobs this way anyway)
    fetching blobs in this fashion will automatically forward them up to Cydia, as well as save a local copy

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Re: Downgrade a obnoveni iOS 5

Takze klasika ako som siel stiahol som redsn0w version 09.15b1 potom som to spustil ako spravca a even more  restore a vybral som posledny FMW teda 5.1.1.
A výsledok ?!

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Re: Downgrade a obnoveni iOS 5

Tak me napada pokud jsem spravne porozumel textu, ze nefunguje na fw 5.x ktere meli fw v zarizeni z vyroby nebo pres wifi aktualizaci. Jestli to neni tvuj pripad.

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18 Naposledy upravil: Netino (14-10-2012 10:21:10)

Re: Downgrade a obnoveni iOS 5

No priznavam ze neviem odkial alebo ako tam bol dany 5x fmw
Ja som ho kupil s iOS 5.1.1 ale samozrejme v cydii mam zalohu 4.3.3, 4.3.5, 5.0.1, a 5.1.1

Takže rovnaky vysledok aj pri 5.0.1 tak mi neostava ako pockat na to kedy bude iOS 6 zlomeny

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19

Re: Downgrade a obnoveni iOS 5

mno, taky me to docela toci, nebot ipad3 jsem JB primo na FW 5.1.1 z vyroby :-( ale zkusim to testnout na ty 2 v praci, ale asi az v utery.

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20

Re: Downgrade a obnoveni iOS 5

Tak som zvedavy ako dopadnes Ty. Daj potom vediet dik

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21 Naposledy upravil: UfOuN (16-10-2012 07:25:28)

Re: Downgrade a obnoveni iOS 5

Tak jsem to dnes vyzkousel na iPad2 5.1.1 VŠE FUNGUJE :-D jak s lokalnim SHSH ta vzadalenym na serveru Cydie. Navod neni potreba je to absolutne trivialni jen je potreba mit zarizeni v RECOVERY modu a ne v DFU!!!

BTW: jinak jsem vse delal na 0.9.15b2

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Re: Downgrade a obnoveni iOS 5

bracho tak ja to dnes skusim este raz a uvidim.V kazdom pripade dam vediet

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23

Re: Downgrade a obnoveni iOS 5

tak som skusil 0.9.15b2 a stale to iste sad

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Re: Downgrade a obnoveni iOS 5

tak je to jasny, prefab nebo ota 5.1.1 tim padem smolik :-(

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Re: Downgrade a obnoveni iOS 5

Sa nastvem a dam iOS6 ale zas byt bez JB?!
Alebo nebodaj je uz JB na iOS6

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