I have an RM500Q-AE with firmware RM500QAEAAR13A01M4G. The module is completely unusable because the network data interface is missing from the USB descriptor in all USB modes:
- QMI mode (usbnet=0): Only interfaces 0-3 appear (all serial), interface 4 (QMI data) is missing
- RNDIS mode (usbnet=3): Only serial interfaces appear, RNDIS data interface is missing
- ECM mode (usbnet=1): Same issue, no network interface
The serial/AT ports work fine, so I can communicate with the module, but no data connection is possible. This appears to be a firmware bug in R13A01 — I have seen that users on R13A03 have working data interfaces.
Could you please send me:
- A working firmware version (R13A03 or newer)
- QFlash tool
- Windows USB drivers
My E-Mail: heroman1701@gmail.com
I am an individual developer based in Germany.
Thank you for your help.