1929Audrey Said:
"My elderly mother keeps mucking up her iPhone by inadvertently moving the icons. She then gets confused and can’t find the app Is there a way to lock the location of the phone icon? How can I lockdown an iPhone for a 92 year old who keeps moving the phone icon and then can’t make calls?"
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Avoid a Passcode:
First off, do not use a passcode, if she it not technical enough to recall it. Avoid using it, because one it is enabled, you cannot disable it. So, just let things be. If she is in an elderly complex, the see if someone there is technical enough to knoww how to configure this.