Hi Isaac,
Forget the “Could you share the Linux USB option driver and also latest manual, please?” question. I found the Quecpython github with the quectel serial driver updates from kernel version QuecPython/Quectel_Linux_USB_Serial_Option_Driver: USB driver of Linux system. (github.com).
The manual link I found was https://forums.quectel.com/uploads/short-url/dV5cK9eteeQmwyGPgfWB351oZde.pdf but it cannot be found on the official support page https://www.quectel.com/download-zone.
Kind regards,
Johan