To delete a device (e.g.testWiki device that is created in Device registration) user should follow next steps.
First user should select from filters the right filter combination which was selected in the creation of a device, which was Enabler -> City , Context -> Test and Category -> Environment, Issues, Waste (which is automatically filled after Enabler and Context are selected). After that user can see testWiki device shown as a result of this filter combination. User should click delete button on device as shown in the following image
Popup will appear to ask user if he/she is sure about deletion of this device, which user needs to confirm by click on a "Yes" button
If device is successfully deleted, green popup will appear with confirmation about successful deletion