Step 1

Download RedSn0w 0.9.6b5 for Windows  (use xp mode and run as administrator on vista or windows 7)

Download the desired firmware from here

Step 2

Connect your iDevice to the iTunes 10.1 and restore iOS 4.2.1/4.1.(how?)

Step 3

Once your iPhone is running iOS 4.2.1/4.1, execute the downloaded RedSn0w 0.9.6b5.

Step 4

Hit the Browse button and select the downloaded iOS 4.2.1/4.1 firmware. RedSn0w will recognize the firmware, now hit the Next button.

Step 5

Select Install Cydia and Install iPad Baseband options. This will add Cydia to iOS 4.2.1 and replace iOS 4.2.1 baseband with iPad 3.2.2 baseband 06.15.00. Hit Yes if you want to update baseband to unlock iPhone.

Step 6

RedSn0w will ask you to turn off your device. When it’s off and plugged in, hit the next button.

Step 7

Now you’ll be instructed to put your device into DFU Mode. Follow the on screen instructions.

Once your device goes into DFU mode, RedSn0w will start jailbreaking it. Once done, you can find the Cydia icon on your iPhone
That’s it. You’ve successfully jailbreak iOS 4.2.1/4.1 on iPhone 3G and now have baseband 06.15.00


  1. >if you fail to do by this tutorial………..contact me through message(SMS) at 9849136626 or post a comment for unlocking and activating your iphone, htc google(android), ipodtouch etc……….

  2. >i downloaded redsnow 0.9.5b5-5 and 0.9.6b5 and firmware 4.0.2 for iphone 3g nut redsnow cannot recognize the firmare…. and is it possible to jailbreak and unlock your iphone without doing 2nd adn 3rd steps…. i thing which i dont undestand is why do we hav to restore our iphone before jailbreakin it

  3. >Dude redsnow doesnot support ios 4.0.2 you better download ios 4.2 or downgrade to ios 3.1.3if you feel trouble doing it your self contact me i will help you….for 100 as i like to help people in tech related things also i have some great paid apps for your iphonemy no. is 9849136626

  4. >ok dude first i'l try myself and if i fail to do so i'l contact you. and does redsnow support 4.1 ? heard that 4.2 cannot be unlocked so i prefer 4.1….i am from swoyambhu and where r u frm are you free today?

  5. >for iphone 3g 4.2 is also unlock able but i would suggest you to try downgrading to 3.1.3 as its very fast than the 4+ versions ma balkhu kuleshwor ma ho

  6. >i selected instal cydia, instal ipad baseband, enable multitasking, enable homescreen wallpapera and battery percentage but now its stocked in fetching ipad basement……where did i go wrong

  7. >may be you are on slow internet connectiontry this just select cudia and ipad base bandon slow net you may not be able to download the ipad baseband file…or it will take alot of time

  8. >jailbreak unlock dubai vo ……. iphone ma chai tower dekhau cha ra naam ni 42901 tara itunes le chai sim does not appear to be supported vanera synu nai garna diyena.. SAM tool pani try gari but kam garena

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