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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone 2 / iPhone 3G / iPhone 3GS

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Old 09-28-2009, 12:02   #1 (permalink)
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Arrow iPhone 3G Downgrade Baseband 05.11.07 to 04.26.08 Firmware 3.1


In response to my previous post of unlocking iPhone 3G, 2G on OS 3.1, I had few people who had broken Rule no.1 (which says that don’t upgrade to OS 3.1 from iTunes) set by Dev Team. For those, here is a solution, downgrade the Baseband.
Pre-requisite: To downgrade your baseband from 05.11.07 to 04.26.08, you must first jailbreak your iPhone 3G running firmware 3.1 by following guide unlocking iPhone 3G, 2G on OS 3.1.
Step 1: Go to “Cydia” and Search for “Fuzzyband” and then install it.
Step 2: Start Fuzzyboard app and click on Downgrade button to start downgrading your Baseband from 05.11.07 to 04.26.08.


Step 4: Now, your iPhone 3G is having an unlockable baseband. Now proceed with Unlocking with Ultrasn0w.

NOTE: Downgrading of baseband will only work on phones that have the 05.08 (5.8) Bootloader. If you do not know your bootloader, run Fuzzyband and it will report the version to you.
Feel free to follow me on twitter to keep yourself updated on all the latest jailbreaking and unlocking releases.
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Old 09-28-2009, 12:20   #2 (permalink)
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good info thanks man !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Old 09-28-2009, 12:41   #3 (permalink)
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yap Nice info ,,,,,,,,,,let me test it and i will post the result if positive.......
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Old 09-28-2009, 12:43   #4 (permalink)
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Is this working perfect?Can any boby tested practically?
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Old 09-28-2009, 12:46   #5 (permalink)
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yap Nice info ,,,,,,,,,,let me test it and i will post the result if positive.......
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Old 09-28-2009, 13:11   #6 (permalink)
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Not working this will work with 05.08 bl only
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Old 09-28-2009, 13:21   #7 (permalink)
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i test it but not work evry day -no service-;;,
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Old 09-28-2009, 13:36   #8 (permalink)
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Quote:
Originally Posted by shaibaz786 View Post
In response to my previous post of unlocking iPhone 3G, 2G on OS 3.1, I had few people who had broken Rule no.1 (which says that don’t upgrade to OS 3.1 from iTunes) set by Dev Team. For those, here is a solution, downgrade the Baseband.
Pre-requisite: To downgrade your baseband from 05.11.07 to 04.26.08, you must first jailbreak your iPhone 3G running firmware 3.1 by following guide unlocking iPhone 3G, 2G on OS 3.1.
Step 1: Go to “Cydia” and Search for “Fuzzyband” and then install it.
Step 2: Start Fuzzyboard app and click on Downgrade button to start downgrading your Baseband from 05.11.07 to 04.26.08.


Step 4: Now, your iPhone 3G is having an unlockable baseband. Now proceed with Unlocking with Ultrasn0w.

NOTE: Downgrading of baseband will only work on phones that have the 05.08 (5.8) Bootloader. If you do not know your bootloader, run Fuzzyband and it will report the version to you.
Feel free to follow me on twitter to keep yourself updated on all the latest jailbreaking and unlocking releases.
sir can u help me how to jail break this version 3.1 and install cyindia installer ?
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Old 09-28-2009, 14:12   #9 (permalink)
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not supported for this version
it work only with 05.08 modem
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Old 09-28-2009, 16:30   #10 (permalink)
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not supported for 05.08
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Old 09-28-2009, 17:06   #11 (permalink)
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95% dont have 5.08 bl, only lucky people can do it
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Old 09-30-2009, 18:12   #12 (permalink)
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yes brother ru 1000% righteeeeeeeeeeeeeee

yes brother ru 1000% righteeeeeeeeeeeeeee

Quote:
Originally Posted by nicacel View Post
95% dont have 5.08 bl, only lucky people can do it

com999
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Old 09-30-2009, 20:11   #13 (permalink)
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i Test it But no service
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Old 10-01-2009, 21:32   #14 (permalink)
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tnxs to you my iphone its working perfect \:d/ my modem was 5.11 and now is 4.26 ,bootloader 5.08 any way tnx again
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Old 10-01-2009, 21:35   #15 (permalink)
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is that window version?????????????
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