I just bought an iPhone, but when I set it for first time the sim card remain thinking. Looks like it is not unlocked. I bought it directly from the Apple store as activate with carrier later

Hi there DiegoPilot,

Thanks for joining us in Apple Support Communities! We understand your SIM card isn't working in your new iPhone, and we'd like to learn more to see how we can help.

To start, are you seeing 'Invalid SIM' or 'no SIM' on your iPhone? If so, you'll want to work through the steps in this support article:

If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad

If the link above isn't relevant to the issue you're experiencing, what's going on with the SIM card exactly? Are you unable to activate your iPhone? If so, follow the steps here:

If you can't activate your iPhone

Send over these details, and we'll take a closer look from there.

Cheers.