Enterprise Home Screen on TC51

While testing the Enterprise Home Screen i locked up my device.

 

I managed to get the calculator app in the EHS in kiosk mode.

 

When i start the EHS i have only the calculator but i can leave this mode.

 

I uninstalled the EHS and installed new one, but still i get the calculator.

 

I tried to find the EHS configuration file. But with File Browser and also with ADB the directory /enterprise/usr is empty.

 

The problem is i cant use the device now because the configuration app has gone and is not acessible.

 

How can i delete the ehs configuration now.