Restore & Update iPhone 3G To 4.2.1 On 6.15.00 Baseband

Follow the steps mentioned below.


Things you need to proceed:-


1> iPhone 3G 4.2.1 Original Firmware
2> iPhone 3G 4.2.1 Custom Firmware
3> Redsn0w 0.9.6.b6

This steps are only valid  when you wanna Restore A Bricked 3G new or Old Bootrom And Can Also Update Your Working 4.1 iPhone 3G To 4.2.1 On 6.15.00 Baseband.


IF Your iPhone Is Not On 6.15.00 Baseband OR Has Not Crashed While Installing It Then theses steps are not valid.


Steps :-


1. If Updating Or Restoring To 4.2.1 Open Redsn0w And Select The Official Firmware, Then Deselect ALL Options And Only Check "Just Enter Pwned DFU Mode Right Now"

2. Once Finished, Open iTunes And Hold Shift Or Option On Mac And Left Click Restore In iTunes, Then Select The 4.2.1 Custom Restore File For 3G ( Depending On Your Device)

3. Open Cydia And Install Ultrasn0w To Unlock! That's It you are done.... 




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Posted in: 06.15.00,3G,4.2.1 Firmware,activate,Apple,Baseband,bootloader,custom firmware,Cydia,iOS4,iPhone,Limera1n,Redsn0w,Ultrasn0w,unlocked.,Windows