How to unlock and unlock the self-made firmware ios4.1

Preparations:
First, download the self-made firmware of ios4.1.
Second, download Red Snow 0.96beta5.

Procedure:
1. Enter the mobile phone to DFU mode. Enable iTunes, and use shift to select ios4.1 for self-made firmware flash. You do not need to start a small umbrella to directly brush it.
2. Run redsn0w0.96-B5, select firmware 4.1, next, yes, and then select the baseband of the first cydia and third iPad. And then proceed. Enter DFU mode as prompted. Jailbreak and upgrade the baseband to the iPad version. Then there is a long waiting process. The mobile phone restarts automatically. [pay attention to the full power of the mobile phone to avoid serious damage to the mobile phone due to power outages ].
3. After the restart is complete, connect to wifi, go to cydia update, and search for super snow ultrasn0w1.2 installation.

After the phone restarts again, the phone card is plugged in and a signal is sent to the upgraded baseband 06.15.00 to complete unlocking.

 

Tip:

1. You cannot downgrade the upgraded baseband to 06.15.00, so proceed with caution .)

2. The reason for this method is to upgrade the modem to ipad3.2.2, And Then unlock it. The reason for doing so is simple: cracking the baseband of the iPad is easier than cracking the iPhone 3gs and iPhone 4.

Note that "Unknown error 1015" appears during the flash:

The "Unknown error 1015" window will appear during the flashing process. Keep this error window uncertain, and keep iTunes open. At this time, the "USB + iTunes" figure appears on the mobile phone screen.

Open tinyumbrella and click "Kick device out of recovery" when the following interface is displayed ".

At this time, the iPhone will see "... SOS ", you can call the emergency call interface (you can only call an emergency call when you stay on the iTunes + data line screen). You don't need to worry about it. After a while, iTunes will automatically run.