This latest free update for Xhorse KEY TOOL PLUS 5C/5D significantly expands smart key programming coverage and delivers real improvements for everyday workshop use on modern vehicles. In this post, we go through exactly what’s been added, which features are working reliably right now, and how this update changes your daily key programming and diagnostic routine.

Upgraded function overview
- 5C supports VVDI smart key and original keys (locked/unlocked)
- 5D currently supports original keys only
- Supports the latest 5C/5D key models from Volkswagen, Skoda, Audi, Porsche, and more
- Supports KEY TOOL PLUS for soldered reading (Solder-free adapter reading will be supported soon)
The latest update enhances compatibility with modern immobilizer systems, offering technicians greater flexibility across various smart key scenarios. For 5C systems, the tool now fully supports both VVDI smart keys and original keys — whether locked or unlocked — simplifying jobs on customer vehicles with mixed or unpredictable key conditions.
When it comes to 5D systems, the current support is limited to original keys only. While VVDI smart key support is not yet available for 5D, Xhorse has confirmed that development is ongoing, positioning this update as a strong base for future expansion. Another important improvement is continued support for soldered reading using KEY TOOL PLUS, which allows experienced users to work directly with supported modules when required. Xhorse has also confirmed that solder-free adapter reading is planned, which should significantly reduce risk and save time during complex data extraction jobs.
CARDIAGTOOL UK Tech Support


