Mac OS Topics
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Post by PraveenAlexis » Sun Oct 16, 2011 12:36 pm

If you have an iPhone 3G or 3GS and need an unlock for your phone then most probably you know about the 06.15.00 unlock method with ultrasn0w 1.2, but if you use that method there is no method of going back i.e. you will stuck with this baseband will lose warranty as it will expose your iPhone to apple, but you don’t worry as I have found a solution to that to. ;)

If you have Modem Firmware 5.13.04 or below then follow the Steps Below

Tools needed

1 . Custom firmware for iphone 3Gs / 3G 4.2.1

Download custom firmware iPhone 3Gs

Download custom firmware iPhone 3G

2. Download Redsn0w 0.9.6b

3. Download Apple original firmware

Download original firmware iPhone 3Gs

Download original firmware iPhone 3G

Save Everything in “Pwange” folder on your desktop

Guide :

1. Connect your phone with PC and switch off

2. Open redsn0w and choose Original firmware.

3. If you have newboot just press “yes”

4. now click “Next”

5. Choose “Just Enter pwned DFU mode right now”

------ HOW TO ENTER "DFU" MODE!!-----------------------------------------------------------------------------------
First Make Sure the Phone is Connected to the computer and Switched off.

1:Hold the Power Button For 4-5 Seconds

2:Then Press The Home button while not releasing the Power Button for 10 Seconds

3:Now release the Power Button and Keep holding the Home button for 30 Seconds.

If the Following Steps Did not work the it usually means you went wrong somewhere and try again, also in the third and the Final step the iPhone usually goes int to DFU mode before 30 Seconds but if it doesn’t help then try keep holding the home button for 10-15 Seconds more.

6- now click “Next” again “Next” and follow the screen.

After that open itunes and press on the restore button while holding the "shift key"
it will oped a "explore window" and select the "custom firmware" which you downloaded!!

it will finish updating your ios very quickly

Once you update your firmware(the ios)

1. Connect your phone with PC and switch off

2. Open redsnow and choose the "Original firmware"

3. If you have newboot just press “yes”

4. now click “Next”

5. Choose Only “Install Cydia”

6. now click “Next” again “Next” and follow the screen.

If you are getting White Cydia Icon just switch of your phone and open redsnow choose Stock firmware 4.2.1 and choose the option “Just boot tethered right now” and click “next” again “next” then follow the screen then you will see the cydia.

Finally you can see your phones is with your old Baseband. now just you can install the ultrasn0w 1.2 from Cydia(for that you need wifi connection cuz your mobile network wont work untill you download and install ultrasn0w)


download ispirit and follow the steps:

1. Connect iPhone to your PC

2. Run iSpirit.exe(vai usb)

3. Navigate to /var/root/Media/Cydia/AutoInstall/(if the file root doesnt exist make them with the exact file names)

4. download ultrasn0w

--------ultrasn0w for iphone 3g download here

--------ultrasn0w for iohone 3gs download here

5. put the .deb app file/files in the AutoInstall folder.

6. Reboot the iphone twice b4 putting the sim card

enjoy :D
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