Siri has finally been ported over to older iOS devices and, unlike last time, there is a way you can install it right now.

Siri was revealed at Apple’s Let’s Talk iPhone event on October 14th as a voice-based personal assistant which, well, allowed you to use your iPhone’s many “smart” features through voice alone. It was included as one of the three main features of the new iPhone 4S (the other being a best-in-class dual-core chip and advanced optics) and is exclusive to it, meaning folks on older iOS devices were left to set reminders and alarms, call their contacts and send emails through (shudder) touch input.

Well, there is now a way to install Siri, at least its GUI, on older iOS devices such as the iPhone 4 and iPod touch 4G.

Apple‘s most exciting feature in the iPhone 4S, vocal assistant feature Siri, has in fact, been ported to the iPhone 4.

Siri was an app that many people had on their iPhone 3GS & 4 until Apple bought the company, integrated it, and then *deleted* the app from their phone when they installed iOS5 . It makes you wonder if Siri on iPhone 4S is just feature differentiation for an otherwise mediocre upgrade, and its restriction to iphone4s is not performance/usability issue.

At 9to5 Mac, developer Steven Troughton-Smith ported the software on his iPhone 4 after first installing the files for Siri and Springboard, which controls how the iOS home screen acts.

Siri interacts with Apple servers in order to process your voice commands and as Siri is iPhone 4S specific feature, Apple servers rejects commands coming from any other device. However accessing VISUAL ELEMENTS of Siri is perfectly possible as this takes the least amount of processing (for the iPhone 4)and Siri is a lot more than this.It has several processes that make it possible for it to speak, process speak/dictation, server communication, and graphics all of which make up like 80% of Siri.It shows Siri on the previous iPhone app was very different from Siri in its current form and it can be a challenge to make it work on other devices because of “not having suitable hardware”.

Please be aware

This guide is only for advanced users.
This guide is for educational purpose only .

Video tutorial



How To Install Siri GUI On iPhone 4 and iPod touch 4G

DISCLAIMER: We here at Redmond Pie have not tested this method and do not recommend installing Siri on your iPhone 4 or iPod touch 4G. The following instructions are shared for educational purposes only. Proceed at your own risk.

Step 1: Jailbreak your iPhone/iPod touch on iOS 5 using Redsn0w or Sn0wbreeze.

Step 2: Download files required for the Siri port to iPhone 4 and iPod touch 4G. You will have to find these files yourself as we wont be able to share these files with you.

Step 3: Using a file explorer for your iOS device, copy over the AssistantServices.framework folder you downloaded in Step 2 to Root > System > Library > PrivateFrameworks after plugging in your device to your computer via USB.

Step 4: Transfer all files from the Springboard folder in Step 2 to Root > System > Library > CoreServices > Springboard.app on your iOS device.

Step 5: Using iFile (you can get it from Cydia), open the .plist file for your iOS device from System > Library > CoreServices > Springboard.app. It will be named N81AP for iPod touch 4G and N9x for iPhone 4 (where x may be 0, 1, 2).

Step 6: Add a new property list named assistant to the .plist file and set its class as Boolean while setting its value as YES.

Step 7: Add the following to the .plist file:

<key>assistant</key><true/>

Step 8: Respring your iOS device.

If you followed the steps correctly, Siri’s GUI will be installed on your iOS device. You can hold the Home button to activate it. Once again, we remind you that voice commands don’t work yet since Apple’s servers don’t accept voice command input from iPhone 4 or iPod touch 4G.