First of all you have to Download GenialSis and Register an account from SymbianSigned.com

Download GenialSiS application and extract .rar content somewhere on your desktop

First Step

Open GenialSis.exe and enter your IMEI number

If you don’t know your IMEI press *#06# in stand-by mode

Press Generate! Button and at the end of first step you have to see “Completed!” Message

In Second Step (2) You have to enter your SymbianSigned.com Account Username (e-mail) and Password

And you will see this notice

Select genialcert.csr in your folder where you extracted

Enter Security Code Correctly and Go To Third Step (3)..

Select the .sis file that you want to sign and Click to Sign! Button

Now probably you’re done! Your unsinged application or game is signed:)

Thanks to http://jaspp.net and socci4 for this program!