Q: can't setup iphone 4s after erasing the data content

Hi kobaduker,

I'm sorry to hear you are having these issues with your iPhone. If you are having issues setting up your iPhone and are getting an "invalid SIM" alert, you may find the troubleshooting steps outlined in the following article helpful, up to and including contacting Apple Support directly if necessary:

If you get an alert about the SIM card in your iPhone - Apple Support

Regards