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Downgrade iphone 3g 4.1 baseband ice2- 06. 15 .00 bootloader 06. 04 thanks

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Not sure what your question is, but if you're trying to downgrade your phone's baseband, you're out of luck. Once it's upgraded, that's that.

Posted on Mar 22, 2011

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How To Downgrade iPhone 4 iOS 6 Baseband?

In this way you enjoy lots of application which were not possible before when you have bought the iphone 4. How to jailbreaking iphone 4 is being done throughout the world and the people are gaining extra facilities from the products of Apple company. How to jailbreak iphone 4 is a process in which we remove the limits of the iphone manufacturer setup and may use in vast area. When you downgrade iphone 4 iOS 6 Baseband you use Cycade and iDevices tool and it is completed in few minutes without any difficulty because baseband is already present in all iphones.

Oct 04, 2012 | Storm8 Kingdoms Live - 44 Legend Points


How to update iPhone 4 without updating the baseband

This will guide you on updating your iPhone 4 to iOS version 4.1 while retaining / keeping your baseband to 01.59.00.

This is for iPhone 4's which are currently on an older iOS version - 4.0.2, 4.0.1 or 4.0. If you didn't do when you update to 4.1, this process cannot downgrade your baseband from 02.10.04 to 01.59.00. This will only keep the 01.59.00 baseband when UPDATING to 4.1.

WARNING: This is for iPhone 4 ONLY! DO NOT attempt to do this on an iPhone 3GS or 3G. I tried this on one of my iPhone 3G, and it failed, the baseband was updated! The result, it can't be unlocked! I assume the same will happen on a 3GS although I haven't tested it yet.

Download Umbrella for PC (Windows) HERE.
Download Umbrella for Mac HERE.
Download iPhone3,1_4.1_8B117_Restore.ipsw HERE.

Save these files on your desktop for easy access.

Don't worry if you don't have a legit sim card, limera1n can hactivate your device. Please backup your iPhone 4 first before you continue.

  1. Open Umbrella and wait until it detects your iPhone 41422a2f.png276e063.png1422a2f.pnge02938d.jpg1422a2f.png1422a2f.png
  2. Put a check mark on Advanced Options box1422a2f.png
  3. On the Request Version, make sure that iPhone4 4.1 (8B117) is selected1422a2f.png76bfd7f.jpg1422a2f.png1422a2f.png
  4. Click Save my SHSH and wait until the request is complete1422a2f.png58b3218.jpg1422a2f.pngc84de4e.jpg1422a2f.png1422a2f.png
  5. Click Start TSS Server (iTunes sill be closed after that)1422a2f.png0b5ea58.jpg1422a2f.png1422a2f.png
  6. Open iTunes1422a2f.png
  7. For PC (Windows) users, press and hold SHIFT on your keyboard.1422a2f.pngFor Mac users, press and hold option on your keyboard.1422a2f.png... then, click Restore1422a2f.pngcb464ba.jpg1422a2f.png
  8. Browse for iPhone3,1_4.1_8B117_Restore.IPSW and click Choose1422a2f.pngc06bf16.jpg1422a2f.png1422a2f.png
  9. Click Restore and wait until it finish1422a2f.png0e65d7a.jpg1422a2f.png1422a2f.png
  10. An error (1004) message will pop up after the restore , just ignore it and click OK. This is exactly what we want to happen to keep the baseband to 01.59.001422a2f.pngbb01b3f.jpg1422a2f.png1422a2f.png
  11. Click No Thanks on the next message, then click OK on the other1422a2f.png552ec66.jpg1422a2f.pngba6b762.jpg1422a2f.png1422a2f.png
  12. Return to Umbrella1422a2f.png
  13. Click Kick Device Out of Recovery and wait for your computer to recognize your iPhone 4 again1422a2f.png497cf69.jpg1422a2f.png7be268e.jpg1422a2f.png1422a2f.png
  14. Finally, go back to iTunes and restore from your last backup.1422a2f.png2cb1a79.jpg1422a2f.pngbde7921.jpg1422a2f.png445d7fd.jpg
That's it! Now to check, go to Settings>General>AboutAnd you should have Version 4.1 and Modem Firmware (baseband) 01.59.00

Now, CLICK HERE to jailbreak your device with limera1n.

Watch this video:

Again, do not try this on 3GS or 3G, please wait for further notice.

notcom for Umbrella

on Oct 16, 2010 | Apple iPhone Smartphone

1 Answer

Can downgrade iphone 3g 4.1 base band ice2 06 15 00 boot loader 06 04 thanks

you can downgrade from 4.1 to 3.1.3 the baseband but will change it will stay 06.15.00

Mar 21, 2011 | Apple iPhone 3G

1 Answer

Im using now iphone 3g firmware 4.1 after downgrading it from 4.2.1 firmware baseband there any possibilities to jailbreak my iphone?recently i tried to jailbreak it using custom IPSW in...

Hi you can still jailbreak your phone with redsn0w 0.5.6b5 and you need the 4.1 ipsw for your phone download redsn0w and the ipsw files,start red sn0w when it asks for the firmware point it to your iphone software you downloaded and click next when ready.
when you get the options to download cydia just tick that box and battery percentage not ipad bootloader you already have that, then click next and follow the instuctions on the screen once redsnow has finished and your phone has rebooted install cydia with the app that has been put on by redsn0w once installed it is jailbroken you can also unlock if need be.
hope this helps.

Dec 17, 2010 | Apple iPhone 3G

2 Answers

Unlock iphone 3g running on firmware 3.1.2 with 05.12.01 baseband and bootloader 06.02

iOS 3.1.2 is obsolete already. You can still jailbreak and unlock with the latest iOS 4.0.1. You just need to update thru iTunes and read my guides on jailbreaking and unlocking on the following links:


For more iPhone / iPod touch tips, click here.


Apr 07, 2010 | Apple iPhone 3G

1 Answer

Unlock iphone 3G 3.1.3 with baseband 5.12.1 tried fuzzyband to downgrade bootloader but cannot.

As on date 3.1.3 firmware with baseband 05.12.01 can only be jail broken (using It cannot be unlocked to be used with other GSM carriers.

Mar 09, 2010 | Apple iPhone 3G

4 Answers

No signal for my iPhone

I had the same problem,
you need to downgrade the baseband using kiphone, is a ztched version of ziphone... here is the instructions:

Jul 14, 2008 | Apple iPhone Smartphone

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