I use iPads as a POS for processing transactions. The iPad is in Guided Access mode, and both Notifications and iCloud drive are turned off.
However, intermittently, a "sign into iCloud" prompt is displayed on the iPad. Hitting cancel doesn't get rid of it. The only way to remove it is to enter the Apple ID password.
The idea behind having it locked to Guided Access is so nothing but the POS app is active. I don't want anyone else to have that password - but the ipad is unusable until that password is entered. Why is this happening? And is there anyway to disable this notification?
iPad mini Wi-Fi + Cellular (MM), iOS 8.2, Seen in iOS 8.2 and iOS 8.3