How to install working Siri hack onto your jailbroken iPhone 4 or 4th Gen iPod Touch right now
The code has been cracked and the highest of multi-defence Apple security has been breached. The iPhone 4S’ exclusive Siri personal assistant is now available for those willing to jailbreak and install a new working hack that brings over the app to iPhone 4’s and 4th Gen. iPod touches.
The following steps are provided to you by Intech-bb:
Step 1: After jailbreaking your device successfully, tap and launch Cydia.
Step 2: Navigate to Manage -> Sources -> Edit -> Add and add the following repository:
http://www.cydia.be
Once the repository has been added click “Return to Cydia”.
Step 3: Now either tap on the repository “cydia.be” or click on search and look for “H1Siri“, once found just tap and confirm the installation.
Step 4: After the successful installation you will need to reboot your device.
Step 5: Once your device has been rebooted, go to Settings – > General -> Siri and switch on the toggle.
Step 6: Now exit the Settings.app and press and hold the home button and you should see a popup of the actual Siri voice assistant. Just tap and speak whatever you like.
Note: You may not be able to connect to Apple Server and it will give you an error saying “Sorry, I’m having trouble connecting to the network”. You can fix this error by restarting your device couple of times (it worked in two reboots for us).
It should be noted that unlike previous attempts to port over Siri, you do not need a genuine iPhone 4S key to access the Siri servers this time around. Also, be wary that Apple could patch any holes this hack takes advantage of at any moment — so for now, don’t get too attached to that sexy, robotic Siri voice for long.
For more info, as well as pictures that complement this guide visit intech-bb.

UPDATE: As pointed out to us by one of our readers, the H1Siri hack is no longer working — but not only that, the method used to access Siri’s Apple servers took a work around that opened up your iPhone’s activity up to the development team in charge of creating their own proxy server.
Diggnation touched on this a little bit last week, since you need a unique iPhone 4S key to get access to Apple’s servers the only way to bypass it would be to have a separate server people could connect to and then route requests through that proxy — albeit at the expense of privary on the countless users enjoying Siri on their non-Siri iDevices.
CydiaHelp also did a post on the subject, explaining the hack’s illegality and in detail the reason for why it no longer is working. It can be read — HERE.