Cómo Hacer el Downgrade a Tu Iphone 3G 2.30 (2.2.1) Baseband para el Desbloqueo

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Posted April 16, 2009 at 1:52pm by iClarified

Estas son las instrucciones de cómo hacer el downgrade de tu baseband 2.30 a 2.28 para los iPhone 3Gs con el bootloader 5.8 Esto te permitirá desbloquear tu iPhone 3G usando YellowSn0w. Un exploit similar aún está siendo trabajado para aquéllos con una versión de bootloader mayor...

IMPORTANTE: Asegúrate de que tu Iphone usa el bootloader 5.8 antes de continuar. Puedes encontrar instrucciones de cómo chequear la versión de tu bootloader aquí: Windows, Mac. Asegúrate de que estás en la baseband 2.30 usando este tutorial. También necesitarás tener instalado Mobile Terminal para completar este tutorial.

Paso Uno
Ejecuta Cydia presionando el ícono en tu SpringBoard.

Cómo Hacer el Downgrade a Tu Iphone 3G 2.30 (2.2.1) Baseband para el Desbloqueo

Paso Dos
Selecciona Secciones pestaña al final de la pantalla.

Paso Tres
Selecciona iClarifed en la lista de Secciones. Si no ves iClarified necesitarás añadir la fuente iClarified usando estas instrucciones.

Paso Cuatro
Selecciona DownBB de la lista de Paquetes.

Paso Cinco
SeleccionaInstall en la esquina derecha de la pantalla.

Paso Seis
SeleccionaConfirmar para empezar la instalación.

Paso Siete
Una vez que la instalación completa exitosamente, presiona el botónRegresa a Cydia .

Paso Ocho
Presiona el botón Home para regresar a tu SpringBoard, y luego ejecuta Terminal

Paso Nueve
Escribesu dentro de la ventana de la terminal alpine usa alpine cuando te solicite el password.

Paso Diez
Escribe DownBB dentro de la ventana de la terminal para abrir el baseband downgrade script.

Paso Once
Se le solicitara que si esta seguro que desea continuar. Por Favor este seguro de que esta utilizando 2.30 de baseband y tienes el 5.8 Bootloader antes de escribir si en la ventana.

Paso Doce
DownBB ahora ejecutara el script el cual baja tu baseband.

Paso Trece
Una vez que el script se a completado, reiniciará automaticamente tu iPhone.

Paso Catorce
Por favor ten en cuenta que ahora estas en baseband 2.28

Paso Quince
Ahora puedes desbloquear tu iPhone utilizando la guía para desbloquear iPhone 3G encontrada en here!

Gracias
Muchas Gracias a EvilPenguin|, pH, and DHowett por su trabajo en este script! Gracias a Geo-hot por haber descubierto la forma de entrar!

Traducido por Kevin Corrales (Costa Rica)

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ravdeep - August 26, 2012 at 10:57am

i have iphone 3g bootloader 6.2 .... by mistake i upgraded it to 4.2.1 baseband 5.15.04 .... now its sim is not getting unlocked..... Is there any way to do it......as the baseband cannot be downgraded using fuzzyband......??????????

Reply · Like

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Damann - October 19, 2009 at 11:02am

I have an Iphone 3G with 3.0 and 5.9 bootloader and 05.11.07 baseband.... When are they gonna come out with a fix for this to be unlocked or an update or something... Ive been waiting a long time for this... Plz Help a brother out.... Im stuck like chuck

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sanenda - October 8, 2009 at 11:05pm

Hello, I have iphone 3g i installed firmware 3.1 by mistake after that i again installed firmware 3.0 after getting errors now i have baseband 05.11.04 something like that, and bootloader 5.90. now I want to unlock my iphone because ultrasn0w is no longer working now.... please help me out.

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that doesn't exactly embrace the avoidance of unnecessary intervention.

Maha - September 20, 2009 at 4:16am

The solution is to upgrade to 3.0 OS and then use Ultasnow to unlock..it works for 5.9 and 6.2 bootloader.

Shahzad Riaz - September 21, 2009 at 5:16pm

Still no luck ..i got OS 3.0 and bootloader 6.4... suggestions? cheers.

Naiyadh - October 1, 2009 at 7:59am

Hey, i have iphone 3g with fw 3.0. my bootloader is 5.09 and bb is 5.11.07. do you think i can do this to downgrade my bb. Please let me know. And thanks for help.

Maha - October 1, 2009 at 8:29am

Yes It is possible I have OS 3.0 and bb 6.02 *(It was 6.somthing I can't recall). Anyway I used Ultrasnow to unlock my phone. Visit this page and do as they say : http://www.blogsdna.com/3778/how-to-unlock-iphone-3g-30-os-firmware-with-ultrasn0w-06.htm

Salman - October 2, 2009 at 1:03pm

Ayman - May 29, 2010 at 10:13pm

ya maha could you tell me more how can you make it work with boot loader 08.09 i tried 3.1-3.12-.3.13 nothing is happening

hyper - July 3, 2009 at 2:32am

thanks for this one, but unlucky for me. Mine has a 5.9 bootloader. is their a new way to downgrade it?

kabin - August 20, 2010 at 7:33am

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muhd sidek - June 22, 2009 at 7:36am

I cant unlock my phone wit yellowsnow..........its show NO SERVICE>.........pLS any1 help me .......... IPHONE 3G 2.2 baseband 04.26.08..................PLSSSSSS

DRAGAN - June 20, 2009 at 10:06am

iphone 3g 3.0 modem 04.26.08 unlock the carrier

mmet - June 18, 2009 at 2:13pm

hello my friend i have iphone 3g 16 gb 3 but i cant use in turkey my phones version 5.9 i cant use with simcard just use turbo sim plz ı need ur help ...

waigal - June 17, 2009 at 12:20am

i have a 3g iphone with bootloader version 05.09 and baseband version 02.30.03 and OS version 2.2.1 can't downgrade the baseband anyone can help????

mike - June 19, 2009 at 11:34pm

iphone newbie is there a way to downgrade 5.9 bootloader yet please help

the_same - September 19, 2009 at 9:30pm

same happens to my iphone dude, i did all that shitty bt nothing happnd yet ,,,,

Maha - September 20, 2009 at 4:21am

Don't worry there is a solution, it has been out for almost 2 months. check http://www.blogsdna.com/3778/how-to-unlock-iphone-3g-30-os-firmware-with-ultrasn0w-06.htm

dr-sotz - October 2, 2009 at 12:43pm

only jailbroken not unlock if ur bootloader is 5.9 and 6.x

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chuck - June 14, 2009 at 11:48pm

iphone newbie is there a way to downgrade 5.9 bootloader yet please help!!!

Jaspreet Singh Jolly - April 23, 2010 at 10:35pm

u cannot downgrade 05.09 bootloader as it is hardware prob........ if u want to replace 05.09 n u live in new delhi(india) i can help u out for that.... it will cost u a bit high ....... ne 1 interested mail me at jaspreet.jolly.6267@gmail.com

Bryan - November 17, 2010 at 1:19am

Did anyone figure out how to downgrade Bootloader 05.09????

vysal - June 12, 2009 at 4:42am

i install actidently with os 3.0 bootloader 5.9 / modem firmware 04.26.08 ... i can jealbreak but cant unlock the GSM carrier. so any idea.

Nameless - December 23, 2009 at 9:11am

isntall blacksnow

smit dave N. - June 3, 2009 at 12:09pm

hey i have a boot loader version 5.9...plz help how to downgrade to 5.80...plzzz help plzzzz!!!!!!!!!!

akter_hosain - June 3, 2009 at 2:31am

I have a Iphone 3g, Firmware version 2.25G77, Modem version 2.30.03 Bootloader version 6.04

reex33 - May 28, 2009 at 10:14am

C'mon!!!! 5.9/6.0 to 5.8 I hope we get this problem solved soon. shhhiiiiitttt......

taha Hadrez - May 27, 2009 at 7:46am

sdfg

tony - May 27, 2009 at 1:35am

help me unlock 2.2.1 version, 2.30.03 baseband and 6.04 bootloader iphone.

serenity - May 26, 2009 at 1:23pm

Thank you for the help. However, yet, the problem could not be solved. Again, we request your help. At present, it is " modem version 02.30.03 ", "OS 5G77". Tell the way of changing into modem version 02.28.0. It tried a down grade in the envoy modem version in the Fuzzyband software. However, because the bootloader version was to do 5.9 being, it isn't possible to do a change. Tell the way of changing a bootloader version into 5.8. Or, tell the way of modem version's being able to be changed in the other way. I request your help.

MrBlue - May 25, 2009 at 10:46pm

Hi, Dev team, we know that you guys are working on upgrading Yellowsn0w to make it possible to unlock bootloader 5.09 - 6.0. Hopefully can be done... don't let Apple laugh at us... poor people who really don't want to be "jailed" and the people who decided to follow your path.

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