Getting your iPhone enter DFU (Device Firmware Update) mode can be tricky, as it involves carefully timed pressing and holding of multiple buttons. Imagine the situation when your Apple device have broken Power and/or Home buttons which do not work as expected, and the need to get your device in DFU mode arises.

Thankfully, the leading jailbreaking utility redsn0w offers a solution to create DFU .IPSW firmware restore file for users who are not able to get the DFU mode using the button combination.

The DFU (Device Firmware Update) mode is needed to update/upgrade/restore an Apple iDevice, however if you want to flash a custom .IPSW file you must enter a Pwned DFU mode i.e. a special DFU mode which had exploited limera1n jailbroken core to allow operations not permitted by the normal Apple DFU core.

Here is a simple to follow, visual tutorial on how to enter the Pwned DFU mode on an Apple device using ever handy redsn0w jailbreaking tool.