How to update SIM card

Hi sabir186, We appreciate you reaching out to us. We understand that you are looking to update your SIM card on your iPhone 7.

If you are looking to check for carrier updates, we recommend that you secure a backup first then update your device. How to back up your iPhone, iPad, and iPod touch

Update your iPhone, iPad, or iPod touch

After the update, we recommend that you check out the article below.

Manually update your carrier settings on your iPhone or iPad

Also, we recommend that you check out the article below.

iPhone 7 Repair Program for "No Service" Issues

Take care!