If don’t have a WiFi any solutions please
I’m not in a position to get WiFi so I could not back my iPhone right now
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If you want to back your iPhone up to iCloud, you need WiFi
How to back up your iPhone, iPad, and iPod touch with iCloud - Apple Support
If WiFi isn't an option for you, then you would need to back your phone up using a computer
How to back up your iPhone, iPad, and iPod touch - Apple Support