Service connection after update iOS to 16.4.1 (a)

Hey PeterBik,

Service signal connections come from your wireless carrier. Do you experience this issue in multiple locations or specific locations? Please also check the following:

* 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.

For additional information or steps, check out this article next: If you see No Service, Searching, or SOS on your iPhone or iPad

Be sure to check for Carrier Settings update as well:

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.

If these steps doesn't help, we encourage you to reach out to your wireless carrier for further assistance.

We hope this helps!

Best regards.

Hi PeterBik,

If you're still encountering the issue after going through the steps from that page, and contacting your carrier, Get Support from an Apple Care advisor.

Cheers!