Como fazer Jailbreak e desbloquear seu iPhone 3GS usando RedSn0w (Mac) [4.2.1]

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Posted November 29, 2010 at 11:56pm by iClarified

Essas são as instruções sobre como fazer jailbreak e desbloquear seu iPhone 3GS no firmware do iOS 4.2.1 usando RedSn0w para Mac. Se você tem um iPhone 3GS com o novo bootrom, você só será capaz de fazer um jailbreak tethered por enquanto. Isso significa que você precisará da ajuda do Redsn0w para dar boot (iniciar) o seu dispositivo jailbroken.

Se quiser usar o Redsn0w para fazer jailbreak numa versão de firmware menor (mais antiga) você pode achar o tutorial apropriado tutorial aqui.

IMPORTANTE PARA DESBLOQUEADORES
Durante esse processo, você pode fazer o upgrade da baseband para a versão 06.15. Se você está na 05.14.xx ou 05.15.xx ou maior (mais recente), você precisa fazer esse destrave. Para simplesmente fazer o jailbreak, não precisa fazer isso. Por favor, leia o que vem a seguir com muito cuidado antes de decidir se realmente quer fazer isso. Você pode descobrir sua versão do baseband aqui.

1. Não há nenhuma maneira de regredir de firmware a partir do 06.15, e não há como esconder a versão do baseband da Apple. Você estará violando sua garantia numa maneira extremamente óbvia.
2. Se alguma baseband nova for liberada com algum ajuste crítico, você não será capaz de fazer upload para ela, se ela continuar na sequência 05.xx.xx (no entanto, você não faria o update de qualquer forma, se quisesse manter seu desbloqueio).
3. Com o FW 4.2.1, se você tem o 06.15 no seu iPhone, você nunca mais será capaz de restaurar para o stock firmware (vai dar erro). Você precisará apenas restaurar para IPSWs customizados (mais uma vez, se você é um desbloqueador, já deveria ter feito/estar fazendo isso).
4. Foi reportado que o 06.15 pode desabilitar o seu GPS. A iPhone Dev-Team está trabalhando numa correção para isso.

Não faça o update para o 06.15 se você não precisa! Faça isso apenas se precisa desbloquear, e está preso no FW 05.14 ou 05.15, e está disposto a assumir os riscos acima. Se sua baseband já é desbloqueável, e você tem um firmware menor (mais antigo), use esse pacote customizado do PwnageTool para fazer o upgrade para o 4.2.1 sem fazer upgrade na baseband.

Passo Um
Crie uma pasta no seu desktop chamada Pwnage.

Baixe o RedSn0w aqui e coloque-o na pasta Pwnage. Da mesma forma, download o último firmware 4.2.1do link abaixo, e coloque-o na mesma pasta.

4.2.1 (3GS): iPhone2,1_4.2.1_8C148a_Restore.ipsw

Extraia o aplicativo redsn0w do arquivo RedSn0w zip dando dois cliques nele.

Como fazer Jailbreak e desbloquear seu iPhone 3GS usando RedSn0w (Mac) [4.2.1]

Passo Dois
***Se você já está no iOS 4.2.1, pode pular esse passo. Se você está numa baseband desbloqueável e num firmware menor (mais antigo), use o PwnageTool ao invés, para fazer o update sem fazer upgrade do baseband.

Conecte seu iPhone ao computador e inicie o iTunes.

Selecione seu iPhone na lista de dispositivos na esquerda. Agora segure Option e clique no botão Restore. A restauração é requerida para que não seja criado nenhum espaço desperdiçado no seu iPhone.

Volte à pasta Pwnage no seu Desktop e selecione o firmware 4.2.1 ipsw. Clique no botão Choose para continuar.

Passo Três
Quando o iTunes terminar de fazer update no seu iPhone para o firmware desejado, abra a pasta Pwnage no seu desktop e inicie o aplicativo redsn0w dentro da pasta redsn0w que extraimos antes.

Passo Quatro
Quando o RedSn0w abrir, clique no botão Browse

Passo Cinco
Selecione o firmware 4.2.1 ipsw que colocamos na pasta Pwnage no nosso desktop, e clique em Open.

Você será indagado se esse dispositivo é um modelo novo. Se o seu for, clique no botão Yes; do contrário, clique no botão No. Por enquanto, você só pode fazer um jailbreak thethered nos modelos novos.

Passo Seis
Uma vez que o firmware tenha sido verificado, clique no botão Next para continuar.

Passo Sete
O RedSn0w irá preparar os dados para o jailbreak

Passo Oito
Nessa janela você pode selecionar as opções de jailbreak que você quer

Verbose boot mostra informações detalhadas do seu dispositivo durante o boot, e geralmente só é necessário para usuários avançados e desenvolvedores.

Certifique-se que o Cydia está selecionado. Para esse tutorial, também selecionaremos Custom boot logo e Custom recovery logo.

Quando você clica para selecionar cada opção de logo customizado, uma janelinha vai aparecer pedindo para que você escolha o arquivo. Localize a imagem que você quer e aperte o botão Open.

*Lembre-se que as regras para os logos são: Formato RGB ou Grayscale com Alpha channel e dimensões abaixo de 320x480. Se quiser usar as imagens do iClarified, clique aqui: Boot Logo, Recovery Logo

Se você leu o aviso acima e gostaria de fazer update da sua baseband para a versão 06.15 do iPad para desbloquear, então marque também a opção Install iPad Baseband. Clique em Yes quando for perguntado se confirma as escolhas.

Clique no botão Next para continuar

Passo Nove
Plugue o seu iPhone no computador e certifique-se de que ele está DESLIGADO antes de clicar no botão Next

Passo Dez
O RedSn0w irá guiá-lo através dos passos para entrar no modo DFU. Você pode aprender mais sobre o modo DFU clicando here

Aperte e segure os botões Home e Power por 10 segundos.

Solte o botão Power, mas continue segurando o botão Home até que o RedSn0w detecte o dispositivo.

Passo Onze
O RedSn0w irá baixar a baseband do iPad e o seu iPhone irá reiniciar

Passo Doze
O RedSn0w irá começar a fazer o upload do novo disco RAM e do Kernel.

Passo Treze
Quando ele completar, você será notificado que o RedSn0w acabou. Clique no botão Finish. Quando seu iPhone terminar de reiniciar (aproximadamente 5minutos), ele estará jailbroken com o Cydia no SpringBoard.

IMPORTANTE:
Se você tem um iPhone 3GS novo e realizou um jailbreak tethered, você pode usar o Redsn0w para lhe ajudar a dar o boot no seu dispositivo jailbroken. Simplesmente selecione Just boot tethered right now na janela de opções e clique Next

DESBLOQUEAR
Se você precisa desbloquear, pode seguir esse tutorial.

*Como sempre, um grande obrigado para a iPhone Dev-Team por seu árduo trabalho e contribuição para a comunidade iPhone.

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H1uams - October 27, 2014 at 5:22pm

Great instructions, best I had found as others took hours and did not work. Would suggest using redsn0w 0.9.14b2 and not the most upto date. Many thanks.

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Marlon - July 29, 2013 at 3:26pm

Make sure to remove your sim card if you have one (I'm running Iphone 3gs new bootroom at&t) I'm a newb but I noticed that this was the only way I could get the jailbreak to work. Also have a question: If you reboot your phone untethered, do you loose all your jailbreak data?

Luigi Pirandelo - November 26, 2011 at 11:14am

Hello everyone! I have a question and I hope you can help me. I have an iPhone 3GS, 4.2.1, 05.15.04 and I want to unlock it. I am planning to backup all my files with iTunes, then jailbreak it and the unlock it with RedSn0w, following this tutorial. I understand that this will change my broadband to 06.15 and the risks. My question: If anything goes wrong with the Jailbreak and I need to reinstall the stock firmware using the iTunes backup, will I be able to bring back my iPhone to the same state before jailbreaking it? Thanks a lot for your help! :-)

Thomas - February 3, 2011 at 10:49am

Hi. I have tried this several times with no luck. Couple times I got a failed to enter DFU massage, but I mostly get unexpected error and instructions to reboot and try again. What am I doing wrong here?

lulu - February 1, 2011 at 12:52pm

DONE! Thanks folks. JB/unlock a friend's 3GS which he inherited from a pal. Works like a charm!

Symona - October 26, 2011 at 2:42am

Clear, inorfmtaive, simple. Could I send you some e-hugs?

verdao - January 25, 2011 at 4:24am

I hope this isn't a repeat question, but please help. I have a 3GS, old bootrom, 05.11.07 baseband. I installed 4.2.1 using pwnage tool and the minimal bundle. Now when I attempt to jailbreak with redsn0w, but redsn0w either crashes when I try to put the phone into DFU mode when prompted by redsn0w or, if I put the phone into DFU mode before starting the process, it says it's encountered an unexpected error. Any advice or help very much appreciated.

David - January 18, 2011 at 3:01pm

NEED HELP!!! I followed the tutorial. At the very end (jailbreak happening directly on the iPhone), I have the iPhone restarting with the message in iTunes "the SIM Card inserted in this iPhone does not appear to be supported". The only deviation I did from the tutorial is that I downloaded redsn0w_mac_0.9.6rc8 & selected the option "activate". What should I do next (apart from throwing my iPhone away)?

ScooterComputer - January 11, 2011 at 3:43pm

Just wanted to give some updated info for those who might be asking. I was hesitant to do the 4.2.1 update because I could not find ANYWHERE that talked about the 4.2.1 Baseband Version Check as it pertained to the 3GS, or the stability of the 4.2.1 "minimal" bundle for the 3GS released by the Dev-Team. #1 The 4.2.1 Baseband Version Check must not affect the 3GS (old bootrom) because I am successfully running 4.2.1 with 5.11.07 without problems! I would still like to see this version check detailed more than it has, what models it affects, etc, but it is NOT inhibiting my usage of 4.2.1. #2 I have been running 4.2.1 with the "minimal" bundle on my Old Bootrom 3GS--jailbroken--for several weeks. It has been rock solid. Battery life is nearly as good as I remember under 3.1.2. I have had no WiFi, Bluetooth, GPS, or other problems. My phone has locked up/rebooted one time, and who knows why that might have been; I've seen that happen to non-jailbroken devices. And I even restored my 3.1.2 Backup to the phonewhich is not normally a good idea. Overall, for experienced (not necessarily guru-level) users who can read and figure out their way around PwnageTool and Redsn0w, I would absolutely suggest doing this update. Especially if you're down in the 3.1.x's with older baseband. BUT STAY AWAY from 6.15 and stock 4.2.1!

Ankit - December 23, 2010 at 12:40am

hey i tried using this method for jailbreak my iphone 3gs on 4.2.1. everything goes on smooth it got restored also but when i use the redsnow thing it says it has worked good but after tht everytime the cydia is not loaded completely and it doesnt operate. kindly help

dubbs - December 29, 2010 at 5:07pm

Same problem here. Cydia flashes and nothing happens. Iphone 3gs, 4.2.1, 05.15.04-6.4_M3S2

lightgale - January 27, 2011 at 12:53pm

ok, tried a jailbreak for a factory unlocked/neverlocked iPhone 3GS everything went smooth, now I see the apple logo and the spinning wheel frozen, and it just won't boot... wtf? So this is the way to brick an iPhone? pfff, what a luck to learn from my mistake... is there any solution? It just vibrates and on the screen there is the apple logo and the frozen wheel... :-( tried checking the tethered boot, I have the pineapple logo instead... still the phone is bricked... am I that stupid?

lightgale - January 27, 2011 at 1:46pm

ok, it looks like it was my bad, as I had to perform a tethered boot, so I miscalculated the week of manuf. tethered boot it is now, but it was painfully slow...

ann - December 21, 2010 at 3:04pm

just tried to do the restore with custom ipsw in itunes, and after extracting it, it tries to contact the apple server to verify the update, but then fails. tried it last night, and again today, and got the error message both times. didn't itunes just have a minor update? does this break the jailbreak? i'm on itunes 10.1.1 ...

Airwalker - December 20, 2010 at 12:36pm

HELP!! Just tried to jailbreak my iPhone 3GS, 4.2.1, 05.15.04, week 34/09) following the instructions above using redsn0w 0.9.6b5. The device does not reboot, instead hangs at "Please wait while your device is being processed. Waiting for reboot". What's going on? Helpful hints very appreciated! Tks

Airwalker - December 27, 2010 at 9:21am

Sorry, realised that I used the 4.2.1 version for the iPhone 3G instead for the iPhone 3GS. Problem solved!

Randall Murry - December 18, 2010 at 10:00am

im using this to jailbreak and unlock but when it gets to the screen after all the baseband downloads....it sticks on- "please wait while your device is being processed" "waiting for reboot" now what? and i can't turn phone back on, its just black

Yhsay - December 16, 2010 at 11:56pm

Hi, I have a 3GS jailbroken and unlocked using BlackRa1n and its currently on OS 3.1.2 and baseband 05.11.07 I am a bit confused on this tutorial, so please help me with these questions 1. Do I need to install both redsnow and ultrasnow 1.2 to get an unlocked 4.21 2. Do I have to first uninstall BlackRa1n on my phone to restore it to any previous condition or should I just download 4.21 , use first redsnow and then ultrasnow? 3. Do I need to upgrade my baseband to 06.15 or should I let my baseband remain at 05.11.07? Rgds Yhsay

thomas - December 17, 2010 at 12:58am

thanks you

Alexandre - February 17, 2011 at 7:43pm

I,m with the same questions. I have exact situation, but I didnt see de answer. How did you make? Thank you

noburg - December 14, 2010 at 8:37pm

Used this method on 32GB 3GS FW 4.1 with iBoot-359.3 Upgraded to 4.2.1 via itunes then followed above steps, all good, no dramas. Did not upgrade my baseband, assuming because i said 'No' to the 'Is it new version' question. Thanks a lot to the author.

edieamien - December 3, 2010 at 2:49am

help any website to download custom firmware 4.21 ?...........

dan - December 1, 2010 at 12:57pm

just jailbreaked my 3gs new bootrom, but after unlocking with ultrasn0w, stuck on apple logo when rebooting, now my 3gs stuck in recovery mode, can't restore it or kick it with tinyumbrella, any ideas ?

dan - December 2, 2010 at 11:11am

problem solved! just downgraded it with tinyumbrella

tony_cicero - January 13, 2011 at 3:10am

Hi Dan, how exactly did you restore or downgrade ur iphone 3gs using tinyumbrella? i saved my shsh files all the way from 4.0.2. but find that even when i run the tss server thing whilst highlighting which version i want to be restored to it just starts the service & 20mins later nothing has happened. please let me know how you managed as i'm now stuck on 4.2.1 baseband 05.15.04_6.4(M3S2) - new bootrom version week 91 i guess as message had popped up the 1st time saying this is a new version of the iphone 3gs - if that helps. need to upgrade baseband to 06.15 to unlock but redSnow needs me to put phone into DFU mode which isn't possible when in restore mode, or is it???

ravichandra - November 30, 2010 at 10:24pm

When can we expect jailbreak and unlock for Iphone 4 with 2.10 baseband.

Jeffd - November 30, 2010 at 6:41pm

Is there going to be a tutorial on how to do this without upgrading the baseband? I am on 4.0.1 BB 5.13.4 unlocked. I see there is a way to maybe upgrade to 4.2.1 without changing my baseband.

Lukas - November 30, 2010 at 3:25pm

I have updated my BB to 06.15 and restore my iphone 3GS from backup after I unlock it via ultrasn0w in cydia. But the battery life was bad, so I decided to restore my iphone but not from backup but it gives me a (21) error code. Can someone help me, and say me how could I restore my 3GS(6.15) to 4.2.1. ?? ..

Satz - November 30, 2010 at 9:01am

Unable to install cracked apps on to the iphone 3gs. followed all the instruction and cydia is working but not able to install the cracked apps. can anyone help me with this pls

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