Only put a SmartTag into warranty mode if your business partner recommends it. This action is used when a SmartTag needs to be returned to the manufacturer, for example due to a defect that cannot be resolved. 

Before taking this step, always try to troubleshoot the issue. See Resolve SmartTag Issues.
If the problem persists, contact your business partner.

What Warrenty Mode Does

Activating warranty mode deactivates the SmartTag and stops it from sending RF signals. This makes the tag safe for transport.

How to Put a SmartTag into Warranty Mode

1. Open the Nedap CowControl app.
2. If you are signed in: Select the menu > Offline services. If you are not signed in: Select Use local services. 
3. Select Put SmartTag in warranty mode.
4. Select Yes, continue.
5. Hold the smartphone against the back of the SmartTag. Wait until the tag is scanned.
6. Repeat for other tags (optional).
7. Select Close.