Check the software management console (e.g., Varjo Base or Vive Console) for administrative lockouts. Best Practices for Enterprise XR Security
If you have exhausted all other options and believe your Nokia device requires a deep-level firmware repair, your best course of action is to contact HMD Global's official support. Explain your situation in detail. They may be able to provide guidance or direct you to an authorized service center where the DeviceKit can be used professionally. hmd device kit username and password free