How can I back up my phone if I don’t have Wi-Fi?
How can I back up my phone if I don’t have Wi-Fi?
iPhone 12 Pro Max, iOS 15
How can I back up my phone if I don’t have Wi-Fi?
iPhone 12 Pro Max, iOS 15
I back-up my phone to my Mac using a cable... see this link...
How to back up your iPhone, iPad, and iPod touch - Apple Support
I back-up my phone to my Mac using a cable... see this link...
How to back up your iPhone, iPad, and iPod touch - Apple Support
You don't, sorry.
"Borrow" a reliable and fast Wifi network with Internet access from your relatives/friends/neighbors, or ask for Help at an Apple Store or authorized servive provider / reseller.
Regards
Giulio
Do you have a Mac or PC?
Don’t have WiFi how do I back up
How can I back up my phone if I don’t have Wi-Fi?