How To Jailbreak & Unlock iPhone 3G 4.2.1 – 5.15.04 Unlock & Untethered Jailbreak!

The iPhone 3G is still a very popular phone despite its age and is one of the most unlocked iPhone’s after the 3Gs. Here is my Updated Guide on unlocking the 3G on 4.2.1 for any Carrier worldwide! Yes this will work on Tmobile, Orange, H20, Red Pocket, Simple Mobile, Prepaid Sims & Any GSM Sim card! You will need to download Redsn0w 0.9.6b6 & Your Official 4.2.1 IPSW.

Redsn0w 0.9.6b6 Windows: Official 4.2.1 3G Firmware IPSW

Redsn0w 0.9.6b6 Mac: Official 4.2.1 3G Firmware IPSW

iPhone 3G 4.2.1 IPSW: Official 4.2.1 3G Firmware IPSW


Step 1. Run Redsn0w by right clicking and selecting “Run as administrator” then select your 5.0.1 IPSW.

Step 2. Select “Install Cydia” & “Install iPad Baseband” On options Menu & Click Next. Now turn off your iPhone. To just Jailbreak Do NOT Select the “iPad Baseband” Option.

Step 3. Click Next & Place the iPhone into DFU mode Following the On Screen Instructions and run the jailbreak/Baseband Flashing. If you encounter any errors try again but if that doesn’t work then¬† watch this video: Redsn0w Error Fix Video or if that too doesn’t work then try it on a different pc.. Wait 10-15 minutes until your 3G reboots.

Step 4. Open Cydia & Search for “Ultrasn0w”, Install, Respring & Then Power off your iPhone.

Step 5. Insert your Sim card of choice and power on your iPhone.

Step 6. Now wait as your 3G finds service, You are done! Enjoy the Unlock & Please Subscribe!



Now Fix Your MMS (Picture Messaging) For Tmobile HERE!: Tmobile MMS Fix for Any iPhone

NOTE: If Your iPhone 3Gs Becomes Bricked at any point in this video (doesn’t turn on, Cant fix it at all) Watch this: Bricked iPhone 3G 4.2.1 Restore Video

NOTE: I you guys are having trouble updating to 5.0.1 with errors like 3194 or “This device is not eligible for the firmware update” ETC then read the fix HERE: Update Error FIX

NOTE: If your firmware is a .zip file once downloaded, Watch this video to fix the error HERE: If your IPSW Firmware file is showing up as a .zip then watch this video HERE: Zip To ipsw Fix Video

If your Redsn0w Is Freezing on certain points then watch this error fix video HERE: Redsn0w Error Fix Video


Related posts:

  1. How To Jailbreak iPhone 4S & iPad 2 5.0.1 Untethered – Absinthe 5.0.1/5.0 Untethered Jailbreak
  2. How To Unlock iPhone 4 5.0.1 – Ultrasn0w/Gevey 4.10.01/3.10.01/2.10.04/1.59.00
  3. How To Unlock iPhone 3Gs 5.0.1 for Tmobile – 5.16.05 to 6.15.00 Redsn0w 0.9.10b5
  4. How To Unlock iPhone 3Gs 5.0 & Fix No Service – 5.16.05 to 6.15.00
  5. How To Restore 6.15.00 3Gs to 4.3.3 Firmware Untethered & Unlock!
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  1. How to jailbreak and unlock iphone 3g 4.2.1-5.15.04 unlock and Untethered jailbreak - 13. Feb, 2012

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