How To Unlock iOS 4.3 Using Ultrasn0w After Jailbreaking With Sn0wbreeze 2.3b4 [Guide]
Good news for unlockers! A new version of Sn0wbreeze 2.3 is now available which supports Ultrasn0w unlock for iPhone 4 and 3GS users (old basebands only) running the latest iOS 4.3 firmware.
The following step by step instructions will help you jailbreak and unlock supported iPhone 4 and 3GS running on iOS 4.3. However before we proceed, please make note of the following:
Ultrasn0w 1.2 unlocking requires that your iPhone 3GS is jailbroken with 06.15.00 baseband. Follow the complete guide posted here (with PwnageTool) or here (for Redsn0w) to update your iPhone 3GS baseband to 06.15.00 and jailbreak it on iOS 4.1 / 4.2.1 before proceeding with the following steps.
Step 1: First up, you will have to jailbreak your iPhone 4 or 3GS using Sn0wbreeze 2.3b4. Instructions for jailbreaking iOS 4.3 using this new version of Sn0wbreeze are exactly similar to the last release. Simply download Sn0wbreeze 2.3b4 from here, and then follow our detailed step by step guide posted here to jailbreak iPhone 4, 3GS, iPod touch 4G / 3G and iPad running the latest iOS 4.3 firmware.
Step 2: Once you are done with the jailbreak, you can now unlock your iPhone on the supported basebands using Ultrasn0w 1.2 from Cydia. To do this:
Mac user? no problem. We have already covered extensive tutorials on how to jailbreak iOS 4.3 using PwnageTool:
The following step by step instructions will help you jailbreak and unlock supported iPhone 4 and 3GS running on iOS 4.3. However before we proceed, please make note of the following:
- Sn0wbreeze 2.3b4 supports Ultrasn0w unlock for basebands (01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00)
- Ultrasn0w is NOT compatible with the following basebands! (02.10.04 / 03.10.01 / 04.10.01 / 05.14.02 / 05.15.04)
- Upgrading your iPhone 3GS baseband to the 06.15.00 iPad baseband hack to unlock MAY cause you to lose your GPS!
- Sn0wbreeze is a tethered iOS 4.3 jailbreak for iPhone, iPad and iPod touch.
Ultrasn0w 1.2 unlocking requires that your iPhone 3GS is jailbroken with 06.15.00 baseband. Follow the complete guide posted here (with PwnageTool) or here (for Redsn0w) to update your iPhone 3GS baseband to 06.15.00 and jailbreak it on iOS 4.1 / 4.2.1 before proceeding with the following steps.
Step 1: First up, you will have to jailbreak your iPhone 4 or 3GS using Sn0wbreeze 2.3b4. Instructions for jailbreaking iOS 4.3 using this new version of Sn0wbreeze are exactly similar to the last release. Simply download Sn0wbreeze 2.3b4 from here, and then follow our detailed step by step guide posted here to jailbreak iPhone 4, 3GS, iPod touch 4G / 3G and iPad running the latest iOS 4.3 firmware.
Step 2: Once you are done with the jailbreak, you can now unlock your iPhone on the supported basebands using Ultrasn0w 1.2 from Cydia. To do this:
- Start “Cydia” on your iPhone.
- Touch on “Manage” tab on the bottom.
- Now touch on “Sources” as seen in the screenshot below:
- Touch on “Edit” and then on “Add”. You will be prompted to enter a url source as seen in the screenshot below. Type “http://repo666.ultrasn0w.com” and touch on“Add Source” to add this repo if you haven’t already.
- After installation is completed. Search for “ultrasn0w 1.2” in Cydia and install this application. This app will automatically unlock your iPhone so that you can use it with any carrier.
Mac user? no problem. We have already covered extensive tutorials on how to jailbreak iOS 4.3 using PwnageTool:
iOS 4.3 Unlock and Jailbreak – Everything You Need To Know
A fix has been released to unlock the latest iPhone 3.1.3 firmware on 05.11.07 baseband using Blacksn0w. Most of you who have tried to unlock iPhone 3.1.3 with 05.11.07 baseband using blacksn0w might have faced this problem where the said tool is unable to unlock iPhone 3G and 3GS. This is because blacksn0w is locating a function to patch by searching the binary for a reference to string "SIM is not supported". In iPhone OS 3.1.3, Apple has replaced the same function in a way that it now uses the string "Verified". Since the location to patch is determined by instruction search&replace, the said patch still works in iPhone 3.1.3 after changing the string and its length in Blacksn0w binary.
Now to get it to work, simply follow the simple step by step guide posted below to unlock your iPhone 3G and iPhone 3GS (05.11.07 baseband only) on iPhone OS 3.1.3 using blacksn0w.
NOTE: This has been tested on iPhone 3GS, 3.1.3 firmware on 05.11.07 baseband only. NOT the latest 05.12.01 baseband.
Step 1: Download blacksn0w.deb from the official blackra1n site here and unpack it using 7-zip (Download link here).
Step 2: Make sure you have OpenSSH installed on your iPhone:
Step 4: Download and install Cyberduck for Mac (download link given below). Enter the following details to login to your phone:
For Windows, download and install WinSCP from here and enter the following details to login to your phone:
Step 6: Download the patched blacksn0w.dylib file from here and copy it over to /usr/lib/ on the phone.
Step 7: Now try to execute a test load via the MobileTerminal app on your iPhone. Download “MobileTerminal” app from Cydia if you haven’t already and run the following command to login via root.
su root
alpine
Once you have logged in, enter the following command in one go as stopping CommCenter will disconnect/pause WiFi and SSH.
launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist ; launchctl load /tmp/com.apple.CommCenter.plist ; launchctl start com.apple.CommCenter
Make sure you get signals with your T-Mobile SIM card.
Step 8: Now if test load is successful, copy the com.apple.CommCenter.plist file from /tmp/directory on the phone to /System/Library/LaunchDaemons/. Reboot you phone now and it should all work.
If test load does not work, the phone will freeze, wait 20 seconds and reboot via (Power+Home) buttons combination.
Also check out our complete jailbreaking guides for iPhone 3.1.3 firmware for iPhone 2G, 3G, 3GS and iPod touch 1G/2G using redsn0w 0.9.3, redsn0w 0.9.4, sn0wbreeze, PwnageTool 3.1.5. Unlocking can be done using ultrasn0w or blacksn0w.
For iPhone 3.1.2 firmware, you can use blackra1n, PwnageTool, redsn0w, sn0wbreeze,ultrasn0w and blacksn0w to jailbreak and unlock your iPhone and iPod touch.
UPDATE 1: Blacksn0w RC2 has now been released which includes this fix. More info can befound here.
You may also like to check out:
Now to get it to work, simply follow the simple step by step guide posted below to unlock your iPhone 3G and iPhone 3GS (05.11.07 baseband only) on iPhone OS 3.1.3 using blacksn0w.
NOTE: This has been tested on iPhone 3GS, 3.1.3 firmware on 05.11.07 baseband only. NOT the latest 05.12.01 baseband.
Step 1: Download blacksn0w.deb from the official blackra1n site here and unpack it using 7-zip (Download link here).
Step 2: Make sure you have OpenSSH installed on your iPhone:
- Open Cydia. Touch on “Search” tab and then search for “OpenSSH”.
- Install “OpenSSH” and reboot your iPhone.
Step 4: Download and install Cyberduck for Mac (download link given below). Enter the following details to login to your phone:
- Server: The IP address of your iPhone. Settings –> WiFi –> <Your Network Name>
- Username: root
- Password: alpine
- Protocol: SFTP (SSH File Transfer Protocol)
For Windows, download and install WinSCP from here and enter the following details to login to your phone:
- Hostname: The IP address of your iPhone. Settings –> WiFi –> <Your Network Name>
- User name: root
- Password: alpine
- Protocol: SCP
Step 6: Download the patched blacksn0w.dylib file from here and copy it over to /usr/lib/ on the phone.
Step 7: Now try to execute a test load via the MobileTerminal app on your iPhone. Download “MobileTerminal” app from Cydia if you haven’t already and run the following command to login via root.
su root
alpine
Once you have logged in, enter the following command in one go as stopping CommCenter will disconnect/pause WiFi and SSH.
launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist ; launchctl load /tmp/com.apple.CommCenter.plist ; launchctl start com.apple.CommCenter
Make sure you get signals with your T-Mobile SIM card.
Step 8: Now if test load is successful, copy the com.apple.CommCenter.plist file from /tmp/directory on the phone to /System/Library/LaunchDaemons/. Reboot you phone now and it should all work.
If test load does not work, the phone will freeze, wait 20 seconds and reboot via (Power+Home) buttons combination.
Also check out our complete jailbreaking guides for iPhone 3.1.3 firmware for iPhone 2G, 3G, 3GS and iPod touch 1G/2G using redsn0w 0.9.3, redsn0w 0.9.4, sn0wbreeze, PwnageTool 3.1.5. Unlocking can be done using ultrasn0w or blacksn0w.
For iPhone 3.1.2 firmware, you can use blackra1n, PwnageTool, redsn0w, sn0wbreeze,ultrasn0w and blacksn0w to jailbreak and unlock your iPhone and iPod touch.
UPDATE 1: Blacksn0w RC2 has now been released which includes this fix. More info can befound here.
You may also like to check out:
- GreenPois0n to Jailbreak iPad OS 3.2?
- GreenPois0n to Jailbreak iPhone 3.2 and iPad Untethered
