Problem with cellular/iphone 13/iOS 17

Hello Anchu91,

Thank you for using Apple Support Communities. If you're experiencing cellular network related issues, we'd like to help you. Although your issue might not be exactly related, this resource does have various helpful steps you should try out. They all relate to cellular issues. Click here for steps: If you see No Service, Searching, or SOS on your iPhone or iPad - Apple Support

Check your coverage area

* Make sure that you're in an area with cellular network coverage.

* Turn cellular data off and then back on again. Go to Settings, then tap Cellular or Mobile Data. If you're using an iPad, you might see Settings > Cellular Data.

* If you're traveling internationally, make sure that your device is set up for data roaming. Go to Settings > Cellular > Cellular Data Options > Data Roaming.

Check for a Carrier Settings update

To manually check for and install a carrier settings update:

1. Make sure that your device is connected to a Wi-Fi or cellular network.

2. Tap Settings > General > About. If an update is available, you'll see an option to update your carrier settings.

3. To see the version of carrier settings on your device, tap Settings > General > About and look next to Carrier.

If you insert a new SIM card into your iPhone or iPad, you need to download the carrier settings for your new carrier.

Reset your Network Settings

Go to Settings > General > Transfer or Reset [Device] > Reset > Reset Network Settings. This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before.

There are steps listed within this resource we shared with you. Be sure to follow all them. They might be able to help sort out your cellular issues. Thank you for using Apple Support Communities. Take care.