Request for Android 9 Driver Support for Quectel EC21

Dear Quectel Support Team,

I am currently working on a project that involves integrating the Quectel EC21 LTE module with a device running Android 9. I would like to request assistance in obtaining the appropriate drivers and any relevant documentation or guidance for setting up the EC21 module on Android 9.

Specifically, I am looking for:

  1. USB drivers compatible with Android 9.

  2. RIL (Radio Interface Layer) libraries or any other necessary software components.

  3. Any instructions or best practices for configuring and integrating the EC21 module with Android.

If there are specific versions of the driver or firmware that I should be using, please let me know. Additionally, if possible, I would appreciate it if you could email the requested materials to me.

Your assistance in this matter would be greatly appreciated.

Thank you for your support.

Best regards,
no1crew@gmail.com