Hi Fixman63,
Thank you for contacting Apple Support Communities. Based on what you stated, it seems the iPhone is not getting a strong cellular signal. There are a couple things you can try that may be able to help. We would recommend you use this article to help troubleshoot the issue.
To manually check for and install a carrier settings update:
- Make sure that your device is connected to a Wi-Fi or cellular network.
- Tap Settings > General > About. If an update is available, you'll see an option to update your carrier settings.
- 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.

After removing the SIM card, put it back in. You might need to contact your carrier:
- If the SIM card is damaged, or doesn't fit in the SIM tray, ask your carrier for a new SIM card.
- If you transferred your SIM card from another device, ask your carrier if your SIM card works with your iPhone or iPad.
Learn more about removing your SIM card."
If you see No Service or Searching on your iPhone or iPad
Please don't hesitate to let us know if the steps resolved your issue or if you need additional assistance.
Cheers.