Remote Support can be used to allow support personnel to view a user's mobile device. Only the user can control the device, but the support person can see what happens.

Vendor Documentation: Screen Sharing on iOS Devices

On iOS devices, the user must change some device settings, then allow a Remote Support session. The vendor documentation covers both parts.

Vendor Documentation: Screen Sharing with Android Devices

On Android devices, capabilities may vary due to the variety of Android implementations. Some devices may be capable of allowing the user to share control of the device, others may only allow screen sharing.

For technical support providers, more complete information is available.

Supporting Customers using iOS Devices

Supporting Customers using Android Devices