phone says set up cellular

See these Apple articles below:

Set up cellular data service on your Wi-Fi + Cellular model iPad

Set up cellular data service on your Wi-Fi + Cellular model iPad - Apple Support

If you see No Service, Searching, or SOS on your iPhone or iPad

If you see No Service, Searching, or SOS on your iPhone or iPad - Apple Support

Manually update your carrier settings on your iPhone or iPad

Manually update your carrier settings on your iPhone or iPad - Apple Support

Update your network provider settings manually on your iPhone or iPad

Update your network provider settings manually on your iPhone or iPad – Apple Support (UK)

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

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

llulisa290 wrote:

phone isn't working

contact your cellular data provider