During the last year I bought and used a Chuwi UBook X with pen (H7) and keyboard. Unfortunately the pen does not work properly anymore, sometime it completely stop to write although the battery is new.
The Chuwi assistance told me, by e-mail, that the pen has an hardware problem and it should be repurchased. The communication with the Chuwi support stopped after that email.
I wrote to the Chuwi European store in Ebay where I bought the tablet to get the new pen, but the never answered me.
The question is: how can I get the new pen exploiting the warranty?
Thank you to all who want to help me.