How to Install Siri on iPhone 3gs and 4 without Proxy on ios 5.1/5.1.1
1: Jailbreak your iPhone.
2: In cydia add the sorce 'repo.siriport.ru'
3: From Cydia Install Siriport.ru app. Once you’ve installed it, reboot.
4: to get iPhone 4S certificate point your browser to 'siriport.ru/1.crt'.
Now, email the certificate file to yourself – open your email and get the certificate. Once you’ve done that, reboot.
Open 'siriport.ru/1.crt' link on safari on iphone, it will bring up a certificate installation window. Tap on install button.
7..Enable Siri and Location Services for Siri
5: Now, just activate Siri. It might get a bit on your nerves here so be patient. Say, ‘Hi Siri’ and wait for a while.If there is no response say it again.
6.if siri says its unable to help right now try reboot and then keep trying again
(i tried rebooting and then kept pressing the siri button continously for some time (5-10 minutes)without waiting for reply.then click again.siri didnt work.but on next press of the button siri worked.it took me about 3 attemps to get it to work.it may take much more)
This method will require a lot of patience and a lot of attempts at tring to activate siri.
This method worked for me.But i cant guarentee that it might work on your device.So do it your own risk.