my IPHONE 4s cellular data is not working

Good Morning don khan ahmadzai,

The resource below will provide some steps that address the issue you are having with your cellular data connection.

If you can't connect to a cellular network or cellular data - Apple Support
https://support.apple.com/en-us/HT201415

I hope this information helps ....

- Judy

Hi don khan ahmadzai,

Thank you for using the Apple Support Community. Due to the nature of your issue or question you may find more information by using another one of Apple's support resources - https://getsupport.apple.com/GetproductgroupList.action

- Judy

you using outside country ...