How to Downgrade 06.15.00 to 05.13.04 on iPhone 3GS/G Using Redsn0w 0.9.14b2

I have good news for all who stuck on iPad baseband. Now you can downgrade 06.15.00 to 05.13.04 on iPhone3GS or 3G applying most recent Redsn0w 0.9.14b2 or Redsn0w 0.9.15b3 for iOS 6.x devices.

This good news came from MuscleNerd yesterday about success in developing downgrading solution for 06.15.00 baseband that works. The problem was that not every iPhone 3GS user could perform baseband downgrade successfully. The reason was in the different types of NOR chip in iPhone.


Download Redsn0w 0.9.14b2 And Downgrade iPhone 3GS iPad Baseband

iPhone Dev Team give to us the possibility to try to downgrade iPhone 3GS iPad baseband. You can downgrade 3G as well. All you need is to get Redsn0w 0.9.14b2 here from the direct links.

Not long ago I wrote the news that MuscleNerd had promised that he would try to release downgrading solution soon. And now this time has become and you can easily to download RedSn0w 0.9.14b2 for Mac and Windows.

I have already written you a tutorial where you could use Redsn0w 0.9.14b1 but this tool didn’t work on some iPhone 3GS and 3G models. Many users stated that they could not to downgrade iPhone 3GS iPad baseband.

Important for unlockers: 06.15.00 baseband is widely used for iPhone 3G / 3GS unlocking with ultrasn0w tool. However now it became easy to factory unlock iPhone. But if iPad baseband is installed on your device you will face with No Service even after official unlock. It caused by such baseband, so only downgrading will fix No Service and open your device for any SIM card.

The reason was in different types of NOR chip on 3GS. First beta version of Redsn0w 0.9.14 “covered only the most prevalent NOR chip”. iPhone Dev Team members made an update on their blog where was told that they needed iPhone 3GS models with other types of NOR chip. And thanks to @healeydave and @dilbert4life who gave their iPhones to MuscleNerd and his team made a success in iPad baseband downgrading. So if your chip is different you can do nothing with your iPad baseband till today. This updated version of Redsn0w can downgrade is working on 3 different types of NOR chip.

Download RedSn0w From Direct Links

  • Download RedSn0w 0.9.14b2 for Mac
  • Download RedSn0w 0.9.14b2 for Windows

Note: On Windows you should Run the tool as Administrator.

Note 2: If you’re using iPhone 3GS which was released in early 2011 or later – DON’T MAKE THIS DOWNGRADE because it will harm your device.

Note 3: If your iPhone is running iOS 6 and above you will need to use Redsn0w 0.9.15b3 following the guide below.

In case you are trying to fix No Service issue and your iPhone is not running 06.15.00 bb you will need to restore iPhone in iTunes and order factory unlock.

Using this updated Redsn0w tool you can downgrade iPhone 3GS iPad baseband much easier that it was before. Don’t worry about IPSW identifying and Cydia unchecking requirements during the downgrading process.

Also Redsn0w 0.9.14b2 brings new feature that can put your iPhone into DFU mode automatically. So you can use it if you can’t enter DFU because your Power or Home buttons are damaged, this make jailbreak to be impossible. And that is really great because many iPhone users have this problem. Now you can use IPSW feature and downgrade iPhone 3GS iPad baseband or jailbreak your device in Redsn0w 0.9.14b2 at the same time even if some of your buttons are not working.

Here is the tutorial guide following the link below.

How to Downgrade 06.15.00 on iPhone 3G and 3GS

Stay tuned with us for fresh updates.


Reinstall Mobile Substrate and Ultrasn0w to Fix No Signal on iPhone 3GS (3G) [How to]

After 06.15.00 baseband downgrade many users receive error No Signal on iPhone 3GS or 3G so I decided to write you complete guide on how to fix No Signal on iPhone 3GS (G).

Yesterday I wrote you a guide on how to downgrade 06.15.00 baseband to 05.13.04 to fix GPS and to have a possibility to unlock your iPhone using Ultrasn0w tool which is good for o5.13.04 baseband.

The chance to downgrade this iPad baseband came after chance to download Redsn0w 0.9.14b1 and many iPhone users who stuck on iPad baseband started to perform this downgrade. But after downgrading process many of them received No Signal status and some other crashes after applying Ultrasn0w.


Use RedSn0w 0.9.14b1 to Downgrade 06.15.00 on iPhone 3G/3GS [How to]

iPhone Dev Team has recently released new Redsn0w 0.9.14b1 specially to downgrade 06.15.00 baseband to 05.13.04 and unlock it using Ultrasn0w on iPhone 3G, 3GS.

The first news about the possibility to downgrade 06.15.00 baseband came from Musclenerd. He said that soon it will be possible to downgrade from iPad baseband to 05.13.04 and then unlock your iPhone 3G/3GS using Ultrasn0w. Also this process will fix GPS problem and you will have the ability to to use stock iOS firmware files (IPSW) again.


Fix GPS Bug in iPhone 3GS and Jailbreak iPhone 4 (9B208) with Sn0wbreeze 2.9.5 | Download

Last four days were very fruitfulness for those who had been waiting iOS 5.1.1 jailbreak for a long time. Today you can download Sn0wbreeze 2.9.5 to jailbreak your gadget on iOS 5.1.1 and fix bug in location services on iPhone 3GS.

First on Friday we met with Absinthe 2.0 and 2.0.1 and many iUsers successfully jailbroke their devices. For detailed tutorial guide on how to jailbreak iOS 5.1.1 untethered with Absinthe go here and perform it quickly. Or download Sn0wbreeze 2.9.5 if you like that tool.


Jailbreak iPhone 3GS iOS 5.1.1 Using Redsn0w (Mac)

This is the instruction for iPhone 3GS iOS 5.1.1 jailbreak with redsn0w on Mac. The process will cause the baseband upgrade so you won’t be able to unlock your device with software tools. If you want to upgrade to iOS 5.1.1 without baseband upgrade – then use this tutorial. The jailbreak is also semi-tethered for all jailbreakable devices except for old-bootrom iPhone 3GS. That means that you’ll need to connect your iPhone to the computer every time you reboot or the battery goes down. If you are on lower firmware and want to jailbreak without updating then go here for the instructions. In case if your device is running iOS 5.1 you can also use the guide below.


Unlock iPhone 3G/3GS With Blacksn0w

In this post you will learn how to unlock your iPhone 3G or iPhone 3GS with blacksn0w on iOS 3.1.2 or newer versions. There are few ways you can do that. For instance, if you accidentally updated to baseband 05.11.07 you can unlock with blacksn0w. The tutorial will work fine both on Mac and PC.


Use iDetector To Check iPhone 3GS Bootrom Version

This is a post for those who want to check iPhone 3GS bootrom while unlocking or jailbreaking. This can be done with iDetector – a tool by iH8sn0w that can detect bootrom version in just few easy clicks. The program can be downloaded from hacker’s official site, the download links will be provided below. Please note that the tool is intended to work only with iPhone 3GS and only on Windows.


Unlock iOS 5.1.1 With UltraSn0w Fixer On iPhone 4, 3GS

A couple of hours ago I wrote you the news about new UltraSn0w fixer that can unlock iOS 5.1.1 on iPhone 4 and iPhone 3GS. Also I wrote you that this two types of Apple devices have to be jailbroken with preserved baseband.

The new iOS 5.1.1 has been recently launched by Apple but there is a jailbreaking solution for it and now there is unlocking solution for it. The iPhone unlock can be done here. All you need to do is to follow my guide.


iPhone 3G iOS 3.1.3 Jailbreak [How To]

This is the tutorial on how to perform iPhone 3G iOS 3.1.3 jailbreak with sn0wbreeze on Windows. Pay attention that this method works only on iOS 3.1.3  so if you’re on 3.1.2 do not use this method because it can ruin your phone. Read the instructions below to figure out how to jailbreak your iPhone 3G or 3GS running iOS 3.1.3 through installing custom firmware using Sn0wbreeze.