Como desbloquear el iPhone 4, 3GS y 3G usando UltraSn0w

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Posted November 28, 2010 at 11:55pm by iClarified

Estas son las instrucciones de como desbloquear el iPhone 3G para uso con cualquier proveedor de telefonía GSM usando UltraSn0w.

Antes de seguir estas instrucciones, deberá tener un iPhone con Jailbrake y deberá estar en la versión 04.26.08 de firmware del modem. Esto significa que debera estar corriendo el firmware 3.0 y usar PwnageTool o RedSn0w para Jailbrake.

Para encontrar la versión del firmware del modem puede seguir este tutorial. Si usted no esta en la versión 04.26.08 entonces usted necesita seguir uno de estos tutoriales antes de desbloquear:
Mac, Windows

Si usted esta en T-Mobile recuerde apagar 3G antes de comenzar...

Paso Uno
Oprima para ejecutar Cydia Installer desde el SpringBoard.

Como desbloquear el iPhone 4, 3GS y 3G usando UltraSn0w

Paso Dos
Oprima para seleccionar la pestaña Manage en la parte inferior de la pantalla.

Paso Tres
Presione para seleccionar el botón grande Sources

Paso Cuatro
Oprima el botón Edit en la parte superior derecha de la pantalla.

Paso Cinco
Oprima el botón Add en la parte superior izquierda de la pantalla.

Paso Seis
Introduzca http://repo666.ultrasn0w.com/ como el url de la fuente y presione el botón Add Source.

Paso Siete
Toda vez que la fuente ha sido agregada, presione el botón grande Return to Cydia.

Paso Ocho
Presione el botón Done en la parte superior derecha de la pantalla.

Paso Nueve
Presione para seleccionar repo666.ultrasn0w.com de la lista de fuentes agregadas por el usuario.

Paso Diez
Presione para seleccionar ultrasn0w de la lista de paquetes

Paso Once
Presione el botón Install en la parte superior derecha de la pantalla.

Paso Doce
Presione el botón Confirm en la parte superior derecha de la pantalla.

Paso Trece
Después de que la instalación se haya completado satisfactoriamente, presione el botón grande Return to Cydia.

Paso Catorce
Ahora presione el botón Home y después apague el iPhone. Hará esto sosteniendo el botón de encendido por 3 segundos y luego recorriendo hacia la derecha el indicador. Presione el botón nuevamente para encender el teléfono.

Paso Quince
Ahora usted podrá insertar el SIM de su elección!

***GRACIAS: Un gran agradecimiento a todos los miembros del iPhone Dev-Team por todo su duro trabajo! Es muy apreciado por todos.

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georgi - May 17, 2017 at 1:37pm

and for me doesn't work

Reply · Like

soly dolyinh - August 28, 2016 at 2:54pm

sorry i am still locked it all worked fine except the part where i check it do i have to restart no service iphone 4 04.12.09

Dragec - March 28, 2016 at 3:56am

I finally made it on an iPhone 3G, 4.2.1, 5.15.04!!! Thanx for the tutorials, although they contain only bits of information, and if you get stuck anywhere you'll have to google further. To succeed, I used redsn0w v. 0.9.14b2, not the latest one (the latest one will give you faulty baseband after downgrade with no wi-fi, bluetooth or IMEI, and you will have to start all over again). After upgrading the baseband to 6.15.00, I got stuck on apple logo (bricked phone). To bypass this, you need to download, and Select IPSW iOS 4.1 (not 4.2.1), and use "Just boot" option. After the phone boots, it will be buggy (the screen), but it will become alive again. Check if the baseband is 6.15.00. If yes, proceed to Jailbreak in redsn0w (this time using 4.2.1 IPSW), and tick the boxes Install Cydia, and Downgrade baseband. After it is done, you will have an iPhone with baseband 5.13.04, which you can unlock with ultrasn0w, but (most probably) with "No service" bug. To resolve this, follow the tutorial concerning this matter, and voila! iPhone unlocked. This procedure felt like walking through thick bushes...

H1uam - October 27, 2014 at 5:18pm

Great instructions, best I had found as others I tried took me hours and did not work. Many thanks

jaykay - October 20, 2014 at 1:55am

how to unlock you iPhone just go on your iCloud account on a computer go to finder click devices click the device logged in to your iCloud click listed then put new pass code then got to your iPhone put in new pass code. your phone will ask for iCloud or apple id then put the pass code in that then the iPhone will be unlocked

ribas - July 9, 2014 at 9:05pm

nao funcionou, fiz como foi ensinado. did not work, as I was taught.

bob - June 9, 2014 at 2:42pm

Nope, still "searching". :(

iuhoosiers - June 11, 2014 at 12:51am

I get the same message... "Searching..."

Huy - June 6, 2014 at 12:54pm

Cam on ban rat nhieu

rosh72 - April 27, 2014 at 2:42pm

how to unlock iphone 4 32 gb ios 5.1.1 baseband 4.12.01 japansoft carrier

dundas - April 18, 2014 at 11:59pm

I can't seem to figure out how to unlock my phone. I have 3gs with 6.1.6 modern firmware 5.16.08 I have jailbreak with redsn0w Installed Ultrasn0w I am stuck on "No service" Ive tried so many things I cant figure it out.

Riz - May 28, 2014 at 5:06pm

I am also having the same problem, were you able to fix it ? if yes, how ?

guhgyg gygfjgfbh - January 25, 2015 at 9:40pm

hola.

huy0979 - March 6, 2014 at 1:13pm

Does this work on a Iphone4s?

Leandro Salazar - March 8, 2014 at 10:30pm

no, this metod doesn't work for iphone 4s.....

Logan - March 5, 2014 at 5:05pm

iPhone 3GS Version: 6.1.6 Modem firmware: 06.15 Install cydia ultrasn0w install finish... No service... How? Please help?

nomad - March 7, 2014 at 9:13pm

uninstall ultrasn0w, use redsn0w to downgrade from ipad baseband, that should bring you to baseband 5.13.0 or something like that, then install ultrasn0w again, good luck

nomad - March 8, 2014 at 11:13pm

correction : that should bring you to baseband 5.13.04 , i just tried it today

yrubin07 - April 29, 2014 at 7:42am

@nomad I tried downgrading and it gets stuck on the white text on screen part doesn't even get to flashing baseband

yrubin07 - April 29, 2014 at 7:59am

iphony - October 21, 2014 at 5:52pm

That worked for me on 3GS 6.1.6. From the beginning if I remember correctly, 1. redsn0w: uncheck Cydia and everything else, check upgrade to ipad baseband 2. Repeat redsn0w, this time with: check Cydia, check downgrade baseband. Now you have tethered boot 3. In redsn0w: Just boot 3. From Cydia, install p0sixspwn. This makes it untethered boot. 4. From Cydia, add the ultrasn0w repository and then install ultrasn0w. Voila! Service! For me the key step was to start over, then upgrade baseband first and then downgrade baseband. Finally recognized T-mobile sim.

danleygg99 - March 3, 2014 at 3:14pm

Hey guys, want to unlock ATT devices? You can check out ATTiphoneunlocking, its the site i have been using for years to unlock my phone, it works pretty good

Thomas - March 1, 2014 at 10:44pm

Just did the jailbreak on my 3G using the iClarified instructions, and included the iPad baseband when I did it. Worked fine, now jailbroken, and shows 06.15.00... but, when I try to run the above, when I click to install Ultrasn0w, I get "the requested modifications cannot be applied due to...' :S

vxr - February 26, 2014 at 5:33am

my iphone 4 basband is 4.12 how to downgrade to 4.10 ? 1.59 ?

daoshi - January 27, 2014 at 6:10am

I have an iPhone 4s with iOS 7.0.4, I cannot down grade to 6.x or 5.x. After I tried the steps suggested, it comes with a message "SIM Not Valid". Anyone suggestion, ot it just doesn't work for 7.0.4? Thanks. Joseph

Duardinho - January 25, 2014 at 5:40pm

Hi all! I've just jailbreaked my iphone and now tried to unlock it because I changed carrier... now, it keeps searching for the carrier and I cannot make any calls... any suggestion? I'm a bit "fresh" on this kind of matters. Thanks all

jag broncano - January 21, 2014 at 5:57am

Thanks you so much..

Jimmy - January 14, 2014 at 5:48pm

Worked at last. Thanks guys. Downgrading my baseband from 6.15 to 5.13.04 did the trick. I have 3Gs and updated it to 6.1.3. with iTunes, JB with redsnow, install Cydia, Ultrasnow, then p0sixspwn for untethered JB. Found everything OK, except it was still SIM locked. Did the baseband downgrade with Redsnow and right away I could call out. Thanks again.

Gaurav - January 11, 2014 at 8:44am

Thanks Iclarified. I got my phone unlocked. Now can i update my phone to ios 6.1.3 (currently on 4.1.1) without getting my phone locked again ?

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