Who tried to make the kiosk - how is the device interface starts just after reboot ?
I guess, that it must be somehow tapped by a user to unlock ?
I mean - if to make the remote controlled kiosk or launcher - the device must be unlocked automatically for the kiosk-app's service can be autostarted.
Kiosk-mode is always required with any user interaction after reboot.
Yes, works, but only if to change the screen lock type to "None". Samsung device allowed it without problem, but Huawei (2 devices) at customer's side - not.