How to use it in China
Dear XinHe,
Thank you for writing to us . I was able to locate these two links and this could be the information you might be looking for.
You can read through the link https://docs.microsoft.com/en-us/hololens/hololens1-install-localized and download it in the language required.
https://docs.microsoft.com/en-us/dynamics365/mixed-reality/remote-assist/faq#:~:text=On%20Android%20devices%2C%20Remote%20Assist,is%20available%20in%20155%20countries. - This link has the list of FAQs for the questions.
Please mark my answer as verified if you found it helpful. Please let me know if you have any other questions around the above.
Bhartendu Pandey
Support Engineer - Customer Engagement- Dynamics CRM/PowerApps/Power Automate
Microsoft