hello please help me for active my iphone 4s
Assuming the phone has never been activated:
To activate your phone first get a SIM for the carrier you want to use, make sure the SIM is provisioned in the carrier's database by calling them, insert the SIM into the phone. If you are within range of a WiFi network it should activate on its own. If it doesn't go to Settings/General/Reset - Erase all content and settings.
Alternatively, connect it to a computer that has the latest version of iTunes already installed and connect the phone. It should activate on its own. If it doesn't click the "Restore" button in iTunes.
If neither of these work, or you have tried other ways, you need to give us more information. What have you tried to do, and what were the results? Include all error messages, with error numbers.