iCloud backup
please how can I change my iCloud backup settings to use cellular data
Question marked as
That is only available in specific circumstances. For information about backup with cellular data, see the following from: Back up iPhone - Apple Support
Note: On models that support 5G, your carrier may give you the option to back up iPhone using your cellular network. Go to Settings > [your name] > iCloud > iCloud Backup, then turn on or off Backup Over Cellular.