downgrade iphone 3gs ios 6.1 baseband 5.16.08 to 5.13.04 for unlocking

8/10/2019 Downgrade iPhone 3GS IOS 6.1 Baseband 5.16.08 to 5.13.04 for Unlocking

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How to Downgrade iPhone 3GS iOS 6.1

Baseband 5.16.08 to 5.13.04 for Unlocking

Published on January 30, 2013 by Richard Ker

Read more:http://www.beijingiphonerepair.com/hack/how-to-downgrade-iphone-3gs-ios-6-1-

baseband-5-16-08-to-5-13-04-for-unlocking/#ixzz3Ea8JZ3Uy

Accidentally updated to iOS 6.1 and found out your iPhone 3GS is locked or stuck in recoverymode? This is a proven working solution. Be warned though, it may take you some time if

youre new to jailbreaking.

This will be a lengthy process so if you have an AT&T iPhone 3GS, you can save all the

troubles andunlock it permanently using this.If you have a non-AT&T iPhone,check our Store

for a possible factory unlocking solution.

First of all, please be aware that the untethered jailbreak for iOS 6.1 is expected to be released

very soon (maybe this Sunday, Feb 3) and baseband 5.16.08 cant be unlocked.

Editor's note:learn more by reading our ebook onstarting your own iPhone repair & unlock

business

However, its still possible to unlock your iPhone by updating the baseband to 6.15.00 and thendowngrading to 5.13.04.

Baseband version 5.13.04 allows you to unlock your iPhone 3GS with ultrasn0w.
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Baseband 6.15.00 is an iPad baseband which can break your GPS.Read the risks here.

In order to downgrade to 5.13.04, you must update it to 6.15.00 first. Unfortunately,

theres no direct way of downgrading it to 5.13.04.

If youre stuck in recovery mode, most likely you already have baseband 6.15.00

installed and iTunes wont complete the restore.

Confusing? Thats OK. Read on

WARNING:If you have the new iPhone 3GS 8GB,read this first.Othewise, by installing theiPad baseband, you will brick the chip and theres no software fix available!

Did you read and understand all the risks? OK, lets proceed.

Apple is still signing iOS 4.1 which you need to downgrade your iPhone 3GS to. The reason why

you need to downgrade to iOS 4.1 first is so that you can update your baseband to 6.15.00, whichallows you to downgrade it to 5.13.04.

[Final warning: Proceed at your own risks!]

Part 1: Downgrade to iOS 4.1

1. Backup your contacts, photos, apps etc. (probably not possible at this stage) Remove your

SIM card.

2. DownloadiOS 4.1 firmwarefor iPhone 3GS or fromhere.

3. Download redsn0w 0.9.8rc18 forWindowsorMac.

4. Download latest version of TinyUmbrella fromhere.

5. Remove iTunes and install iTunes 10.4.1 forWindows(32-bit) orMac.

6. Put your iPhone into DFU mode. See YouTube videohere.

7. Launch iTunes, connect your iPhone, hold down the SHIFT for Windows or Option for Mac

while you click the RESTORE button in iTunes and select the iOS 4.1 firmware file you havejust downloaded. If you get an iTunes error 3194,read hereon how to fix it.

8. The restore will end with error 1015 and recovery loop on the iPhone, this can be resolvedusing the Exit Recovery button in TinyUmbrella.

Part 2: Installing iPad baseband 6.15.00

9. Start redsn0w 0.9.6rc18.

10. Browse for the iOS 4.1 firmware you just downloaded.
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11. Select Install Cydia and Install iPad Baseband. Warning: installing iPad baseband will

break your GPS, if you have the new 3GS made after week 28 of 2011, it does not support

the iPad baseband. We will downgrade to 5.13.04 later for the GPS fix. Once again, if you

have anAT&T iPhone 3GS, unlock it using this.

12. Follow on screen instructions to put your device into DFU mode to begin the jailbreak.

13. When the process is done, you will find that your iPhone is now jailbroken on iOS 4.1 with

iPad baseband 6.15.00. To make sure you can always go back to iOS 4.1, launch Cydia andselect Make my life easier.

Part 3: Downgrading to baseband 5.13.04 (GPS Fix)

14. Now download redsn0w 0.9.14b2 that can downgrade iPad baseband to 5.13.04 forWindows

orMac.

15. Launch redsn0w. Go to Extras > Select IPSW button in redsn0w to point to the originalfirmware you downloaded in Step 2.

16. Do a controlled shutdown of your iPhone (slide to power off).

17. Return to the first screen and click Jailbreak. Check the Downgrade from iPad baseband

checkbox, uncheck Cydia and click Next.

18. Redsn0w will start doing the downgrade and you will see Flashing Baseband screen on

your iPhone with the Pawnapple icon. DO NOT INTERRUPTyour iPhone while basebandflashing is in progress.

19. When done, your iPhone will reboot itself and you will now have iOS 4.1 with baseband5.13.04 that can be unlocked with ultrasn0w.

20. You may want to update to iOS 5.1.1 which has untethered jailbreak and can also be

unlocked with ultrasn0w 1.2.7.Use this tutorial here(its for baseband 6.15.00 but will work for

any baseband). You can install iOS 5.1.1 only if you have the SHSH saved on Cydia or

locally.

If youre happy with iOS 4.1 and would like to unlock it, read on

Part 4: Unlock with ultrasn0w

21. Launch Cydia from Springboard (home menu).

22. Search for ultrasn0w on Packages in Cydia. If you cannot find it, add new sources by typingultrasn0w repo:

repo666.ultrasn0w.com (with zero, not o).
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23. Install Ultrasnow 1.2.71.2.8

24. Reboot your iPhone.

25. Turn off 3G and insert your SIM card. It should pick up your mobile signal.

Part 5: Update to iOS 6.1 by Preserving your Baseband and then Unlock with Ultrasn0w

(Fixer).

Like, Tweet or +1 to reveal this free content, we will not bite, we promise.

Not too difficult right? If you follow the exact instructions, 99% of the time this will work.

Good luck and leave your comments or questions below. If I missed anything, please let me

know.

If you find this post useful, please do us a small favor by clicking on LIKE or Recommend onGoogle+ below. Be sure to subscribe or join ourFacebook page.

Read more:http://www.beijingiphonerepair.com/hack/how-to-downgrade-iphone-3gs-ios-6-1-

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downgrade iphone 3gs ios 6.1 baseband 5.16.08 to 5.13.04 for unlocking

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