How to to Jailbreak iOS 4.3.3 using Sn0wbreeze 2.7 and Preserve Baseband to Unlock iPhone 4/3GS on Windows
For unlockers: 2.7 Sn0wbreeze only jailbreak and retain baseband IOS 4.3.3, if you have an older baseband (01.59.00 / 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00), it can Unlock iPhone 4/3GS.
You baseband (02.10.04 / 03.10.01 / 04.10.01). Sn0wbreeze 2.7 and 1.2.3 Jailbreak ultrasn0w only unit in iOS 4.3.3.
Lets Start with the Jailbreak:
Step 2: Select the blue arrow in the upper right corner and then click Yes when asked: “you really want to do so.”
Step 3: Now pull the box IOS 4.3.3 IPSW, or search for the IOS 4.3.3
Step 4: Now Sn0wbreeze 2.7 reviewed IOS 4.3.3 firmware. Click Next when complete Arrow Check iOS 4.3.3
Step 5: Now choose the simple mode or expert mode (if you open a support, then just go to the baseband upstream activities, remember to open it, you must be an older baseband, keep left and got to use a base-band mode).
Step 6: At this stage Sn0wbreeze 2.7 is the firmware options, click on the custom IPSW. And a blue arrow, click the Custom IOS firmware 4.3.3 to start building.
Step 7: Now Sn0wbreeze creates custom firmware IOS 4.3.3 a few minutes.
Step 8: Now that the Custom Firmware 2.7 DFU pwner Sn0wbreeze will ask you to express your iPhone 4 in connection with 3G PC and turn it off and put it in DFU mode. Click the Start button and follow the instructions on the screen, when you get into DFU mode.
- Press the Home and Power button for 10 seconds.
- Release the power button and hold the Home button for 15 seconds.
Step 9: Snw0breeze 2.7 now displays messages when it’s your iPhone 3G Pwned DFU mode 4.
Step 10: Now open iTunes and restore the 10.2.2 4.3.3 Custom IOS Press Shift + Restore Custom IOS firmware 4.3.3 iPhone 3Gs 4 returns.
Now relax and wait for iTunes does the rest for you. iPhone after the installation will start making the firmware.
After jailbreaking and conservation of the baseband 4.3.3 and iOS, if you’re unlocking the baseband, you can follow the instructions here to unlock your 3G iPhone 4/iPhone Ultasnow 1.2.3.