Install Siri On iPhone 4, 3GS, Ipad 2

   Step 1: Launch “Cydia”


Step 2: Click “Manage” and click “Edit” and “Add”

Step 3: Add repo: “repo.siriport.ru”
Step 4: Select repo: SiriPort.ru Repo

Step 5: Select tweak “SiriPort”

Step 6: Click “Install” and “Confirm”
Step 7: Reboot
Step 8: Install the Certificate from the website on iDevice or download and transfer this files from Mac or PC to iDevice with iExplorer. (about 200MB)
Step 9: Reboot
Step 10: Activate Siri and say “Hi Siri” Siri won’t work, wait 1-4 minutes and try again. (Say “Hi Siri” again)
Step 11: Repeat step 6 until Siri is activated

Updated:
Step 10: Activate Siri and say “Hi Siri” Siri won’t work, wait 40-50 minutes and try again. (Say “Hi Siri” again)!!!