and thank you for reaching out.
I am sorry for not being familiar with French, so I used Google translate to understand.
Could you please provide the model name (for example, UM5500QA or UP6502ZA) of your zenbook 15?
The following Notebook hardware devices or appearance may vary by per region, country, or model.
Please refer to the user manual of each model for more details, or the link below for troubleshooting the keyboard issue.[Notebook] Troubleshooting - How to fix Notebook Keyboard problems | Official Support | ASUS Global