Q: iCloud backup

Hello there, Jan.

It seems you're having issues backing up your iPhone because you receive a message that something went wrong. The following Knowledge Base article offers up some great steps to try:

Get help backing up your device in iCloud - Apple Support

A message says my backup could not be completed

1. Make sure you're connected to the Internet with Wi-Fi.  
2. If possible, try connecting to a different Wi-Fi network.
3. See if you have enough iCloud storage for your backup, and get more storage if you need it.
4. If you need more help, contact Apple Support.

 

Get more help

• Make a backup
• Get help restoring your device from an iCloud backup

Thanks for being a part of Apple Support Communities.

Kind Regards.