Q: iCloud backup

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Open Settings > General > iCloud > Storage & Backup, and enable iCloud Backup. Your iPhone will back up to iCloud when it's connected to a Wi-Fi network and plugged to the charger, but you can also make manual backups going to Settings > General > iCloud > Storage & Backup, and choosing Backup Now

When I go to Settings > General > iCloud > Storage & Backup

I cannot enable iCloud Backup:
     The slider is disabled and do not want to move.

          So how do I enable that slider to be able to enable iCloud Backup?

(I am wondering if I need a screwdriver to loosen that slider?!?)

Unsuccessful how?  what happened that tells you it didn't back up?

Check your restrictions in Settings - that might be your problem.

My restrictions are "off" means "no restrictions are activated".

Even I turned restrictins "on" and allowed everything -> the "icloud backup"- slider keeps disabled.

Also when I reboot the iPad afterwards nothing changes.

I have a message on my mini iPad saying iPad has not been backed up in 2 weeks. Backups happen when iPad is plugged in, locked, & wifi is on.  Cannot do anything but plug it in.  Don't think wifi is on.  Won't shut down completely & won't get rid of the message!  What do I do?

Reset it by holding the power and home buttons at the same time until you see the Apple logo, then release.