I phone won’t back up at all
my I phone will not back up it says it hasn’t back up for 25 weeks
iPhone 6s Plus, iOS 13
This is not a chat service. This is a user to user support forum and Apple does not participate here. You need to type out a question describing your problem and any troubleshooting steps you have taken to fix it, and wait for one of the volunteer users to read it and one to answer it.
What happens when you attempt to back up? Are you trying to backup in iTunes or iCloud? If iCloud, see this for troubleshooting, If you can't back up to iCloud or restore from iCloud backup failed - Apple Support