To activate/deactivate the guardian mode function, go to the ProtectedTools App or | inthesk | and go to the detail view screen of the inthesk in question. Then go to the detail view screen of the inthesk in question:

When logging in, on the main screen, press the “GUARDIAN” button of the device you want to set (provided your model has the Guardian function).
To activate it, just click on the “Activate Guardian” button.
To deactivate it you must move the device while pressing the “Deactivate Guardian” button.

Depending on the phone:
iPhone: tap Done at the top.
Android: the setting is activated immediately, just press back.