my phone updated overnight now has mobile issue detected,

Follow If you see a Cellular, Ultra Wideband, or Apple Pay Issue message after an iOS update or restart - Apple Support

luck79 Said:

"now it’s saying an update is required to use mobile data on this phone. there is no updates when i check though"

-------

Troubleshoot "Unable to Activate":

A. Start Here: If you can't Activate your iPhone - Apple Support

As it Reads: "If your iPhone can't be activated or an alert says the activation server is unavailable or the SIM card is unsupported, learn what to do."

B. Install a Cellular Update:

Your device is quite old. So, that may be the culprit. But, before making that assertion, try the following. It might be prompting you for a cellular update to install. So, go here for that. Update your carrier settings manually on your iPhone or iPad - Apple Suppor

luck79 Said:

"my phone updated overnight now has mobile issue detected,"

-------

Thank you for the screenshot.

"No Service" is the Culprit:

Looking on the top-left corner of your screenshot, I see "No Service". That means that you are not connected to a Cellular network. So, contact your Carrier. Looking at the lines to the left of it those works, they are a bit dulled-out. So, if your are in a rural area, then this can cause this to occur. If not, then there may be an issue with the connection. So, once again: contact your carrier.

Screenshot:

luck79 Said:

"my phone updated overnight now has mobile issue detected, i have tried network reset and still have the issue"

-------

Troubleshooting "Mobile Issue Detected"

So, what's this issue? Please provide a screenshot of this message, so we can all see this, and assist you further.

luck79 Said:

"now it’s saying an update is required to use mobile data on this phone. there is no updates when i check though: [...]unsure how to attach a screenshot sorry"

-------

No need to apologize :)

Use this icon on the bottom of the bar on the bottom of your frame when residing. It is the first item in from the far-right. So, once open, select the screenshot, and then click the Upload button. Once uploaded, reply back.