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How to Downgrade Baseband 05.14.02 and Unlock Apple iPhone 3G iOS 4.1 and 4.2.1

5.13.04Now if you are on of those people who upgraded to iOS 4.1 or 4.2.1 and realized that it cannot be unlocked. Now the there is still no unlock to baseband 05.14.02 and also fuzzyband cannot downgrade your baseband on the iOS 4.1 or 4.2.1 .  So if you did it and you are stuck, don’t worry follow these steps here, I have tried my best to make theses steps as easy as possible and after you follow these steps there will be a link at the bottom which will guide you on “How to upgrade to iOS 4.2.1 with out updating the Baseband” . Step by Step Guide to Downgrade iPhone 3G iOS 4.1 or 4.2.1 baseband 05.14.02 to iOS 3.1.3 with baseband 05.13.04 in Windows and unlocking it with ultrasn0w. Here’s What you need. LOL 🙂

  1. iTunes (Latest Version Recommended)
  2. iOS 3.1.3 firmware file
  3. Recboot v1.3 (or the Latest Version)
  4. Latest version of Microsoft .NET Framework 4
  5. redsn0w-win_0.9.4 or higher
  6. Wi-fi Internet

Before we start I just wanna say is its very easy and anybody with very less knowledge can also do it, and if anything goes wrong WE ARE NOT RESPONSIBLE

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Step One

Connect your iPhone to your computer and open itunes. And wait for the iTunes to Detect it. The hard part is over, now from here everything is Easy….

Step Two (Optional, Your Choice i.e. you can do with out it)

Now After you iPhone is detected in your computer you need to put your phone into your phone into DFU mode.Here is how,

  1. Video Tutorial
  2. httpv://www.youtube.com/watch?v=bITIiGswjFI&feature=related

  3. For Written Steps

 

Step Three

Now if you followed Step 2 iTunes tell you that your device is in recovery mode and you need to restore it. If you didn’t do Step two it’s fine…. I assume you have downloaded the file, save it on your desktop along with the redsnow .zip file in a folder called “Pwnage”. Now what we need to do is restore the iphone with iOS 3.1.3, So to that hold down the “shift key” and click on “Restore”, Now guide it to the pwnage folder on the desktop and select the 3.1.3 firmware file which most probably named “iPhone1,2_3.1.3_7E18_Restore.ipsw“, and Select the file. Now let iTunes do its thing.

Step Four

Now while iTunes is restoring the firmware, unzip the recboot files and paste them in the folder “C:\Program Files\Common Files\Apple\Apple Application Support” and along with “itunesmobiledevice.dll” which will be in the folder “C:\Program Files\Common Files\Apple\Mobile Device Support” also ensure you have the latest version of Latest version of Microsoft .NET Framework 4 installed in your PC.

Step Five

Pray, Pray to god everything goes well the first time. Well thats what I did. Now when while restoring your iPhone you will see a “1015, 16xx, 1011, 1013 Errors” on your computer screen and see the itunes symbol on your iphone, No need to panic, we actually wanted these errors. Now open Recboot and click on “Exit Recover Mode”.  And your Device shall boot Normally into iOS 3.1.3Reboot exit Recovery mode

Step Six

Now your phone has iOS 3.1.3, You need to jailbreak the phone to Activate it.

Follow the steps here to Jailbreak the phone.

Note that the following steps recommend using redsnow 0.9.2 but i used 0.9.4 to jailbreak my phone.

Step Seven

After jailbreaking your install/ setup Wifi in the phone as you will need the internet , Open Cydia, Let it do its thing and after it “Reorganizes” it self and then  search for “Fuzzyband”. Note that there will be Two Fuzzyband in there, Install the one that says just says “fuzzyband” its the one at the top. Mean while make sure it is connected to the internet, and let it install it Selfcydia

Step Eight

After Fuzzyband is installed this is the time you have to pray the most because this is the step that will decide if you can unlock the phone or not. Now Open Fuzzyband. fuzzybandNow when you will open Fuzzyband it will show our bootloader version, what iOS version and stuff, Just Click on “downgrade”,now  PRAY, for some people it did not work the first time… now if you get the message “I HAZ DOWNGRADE”. This means you have successfully downgraded the phone and you cant now unlock the phone.

fuzzyband_downgrader

Step Nine

Switch of the phone by holding the power button till you get the message ” Slide to Power OFF “, Now Switch on the phone the same way. Now your Phone is unlockable.

Now If You want to iOS 3.1.3 which is faster by the way) and dont really want to upgrade to iOS 4.2.1 (If you dont want the folders and some Minor Tweaks)

Here is how to unlock the phone using ultrasn0w.

httpv://www.youtube.com/watch?v=xrRUyoADI1g&hd=1

iOS 4.2.1 is the last update Apple is giving to iPhone 3G and its the best iOS 4 has for this device so if you still want to upgrade click here to upgrade to iOS 4.2.1 without upgrading your baseband and you will still have the ability to unlock.

Now you phone is unlocked and ready to be in action again…. Now you phone is no more itouch only device… have fun…. If you need any help feel free to ask in the comment section below. Also don’t forget the iphone Dev team for the tools we used, and don’t forget to thank GOD who made this all possible. Also if u need any new on updates or how to downgrade or upgrade or unlock please like our facebook page and we will keep you updated.

Microsoft .NET Framework 4

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