cellular update failed

Update your carrier settings on your iPhone or iPad

• Make sure 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.

Update your carrier settings on your iPhone or iPad - Apple Support

https://support.apple.com/en-us/HT201270

Alyzea wrote:

i got a cellular update failed what do I do

See this Apple support article for this specific error-->If you see a Cellular Update Failed or Apple Pay Not Available alert after iOS update or restart - Apple Support