THIS IS SAFE PORT !!!
CREDITS
official website: siriport.ru
developers youtube channel: SiriPortRu

The instructions:

(1) Restore your iDevice and set him as a new iPhone/iPod. (Optional)

(2) Then go to Cydia and install this source: repo.siriport.ru

(3) Open the source and install SiriPort

(4) Reboot your iDevice

(5) Go to safari on your iDevice and type this URL: siriport.ru/1.crt

(6) Install the certificate

(7) Reboot your iDevice

(8) Now activate siri and say "hi siri" then she will say that she isn't connected don't worry just don't touch your iDevice for about 4 minutes and say again "hi siri" then she isn't (but can work) then wait for 4 minutes again (while you'r waiting 4 minutes don't touch your iDevice) then activate and say again "hi siri" if she will say that she is not connected (can't take any requests right now...) if it steel don't work try the next step.

(9) Download ifile, then open ifile and navigate to: /Var/mobile/Library/Preferences/ and
search: com.apple.assistant.plist
then delete that .plist file.

(10) After you deleted .plist file (only the com.apple.assistant.plist) Reboot your iDevice

(11) Now again activate siri and say "hi siri" then she will say that she can't take any requests right now... so wait for 4 minutes and ((while you'r waiting 4 minutes don't touch your iDevice) try again activate her with home button long press and say "hi siri".

You Have To Do Step 11 A Lot of Times UNTIL siri will work