Jailbreak and unlock your iPhone 4.2.1 firmware

The latest jailbreak for your iPhone/iPad has offically come out. Thanks to the wonderful Dev-team we are able to once again jailbreak one of the worlds most inovated techonlogies. The Dev-Team has provided its users with two methods of jailbreaking. First you Will need to download the latest redsnow which you can download here
SIMPLIFIED ROUTE #1 (redsn0w for OSX + Windows):

Read and fully understand the warning below.
If you have an old-bootrom 3GS and are already unlockable but want to get to 4.2.1, please wait til we release an “unofficial” bundle for you. Read no further.

Use redsn0w (see update #2) for OSX or Windows. Enable the “Install iPad baseband” option and accept the warning.
When the redsn0w ramdisk is finished, install ultrasn0w via Cydia.
Enjoy!
SIMPLIFIED ROUTE #2 (PwnageTool for OSX):

Read and fully understand the warning below.
If you have an old-bootrom 3GS and are already unlockable but want to get to 4.2.1, please wait til we release an “unofficial” bundle for you. Read no further.
Read update #1 for an updated 3GS bundle.
Download this IPSW
Run PwnageTool to create a custom 4.1 IPSW. Tell it you want to use the iPad baseband you just downloaded. Restore to this custom IPSW.
Install ultrasn0w through Cydia
Enjoy!
FULL VERSION:

Since 06.15 is a higher version than 05.14 or 05.15 (where AT+XAPP is gone), anyone stuck at those versions can simply upgrade to 06.15 to unlock again! Luckily for us, Apple *still* provides the iPad FW 3.2.2 with this vulnerable baseband right from their own servers. (Grab it now, before they take it down!)

I nor the Dev-Team are in any way responsible if your idevice is affected in anyway. By using and download the software provided you are taking the risk upon your self

Delete calls one by one on iphone 4.1 firmware

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