Technical Services

With the ITR service process as the core, a three-level technical support framework is established. Through dedicated specialist docking, it achieves rapid response, efficient circulation and effective resolution of customer needs.

Rapid Response Principle

Establish a response mechanism from multiple dimensions, efficiently handle technical and quality issues, and shorten product upgrade and repair cycles.

Proactive Cooperation Principle

Prioritize meeting customers’ technical needs in product joint testing, daily use and version upgrades, and take the initiative to collaborate on problem-solving.

Fault Zeroing Principle

For returned faulty products, strictly implement the standards of "accurate positioning, clear mechanism, problem reproduction, effective measures, and drawing inferences from one instance".

Firmware Upgrades & Software Updates

Provide full-cycle firmware upgrade and software update services to continuously optimize product performance and adapt to the latest application scenarios.

After-Sales Service

Customers with questions can contact us via the service email at any time: lene@vunav.com.

Read "After-Sales Service Policy"

If you have any questions, please feel free to contact us via our service hotline:
Service Hotline：+86 187 1100 3743

Online Consultation

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