Quectel RM500Q Connection Issue

IoT Modules 5G Module
1

Ive just adquired a Quectel RM500Q-GL, but im not able to make it works. I have cloned this git repo following the instructions of the documentation of the web I bought the module. Im trying to use it with a khadas VIM3 board. There is no device in the /dev/ directory pointing to the module but when I write lsusb in the command prompt y see

“Bus 001 Device 003: ID 2c7c:0800 Quectel Wireless Solutions Co., Ltd.”

When I try to launch the QConnectManager in the Khadas board I get the following error:

khadas@Khadas:~/quectel-CM$ sudo ./quectel-CM 
[02-22_17:06:21:631] QConnectManager_Linux_V1.6.2
[02-22_17:06:21:632] Find /sys/bus/usb/devices/1-1.3 idVendor=0x2c7c idProduct=0x800, bus=0x001, dev=0x003
[02-22_17:06:21:634] network interface '' or qmidev '' is not exist
[02-22_17:06:21:634] qmidevice_detect failed
[02-22_17:06:21:635] atdevice_detect failed
[02-22_17:06:21:635] qmidevice_detect failed

I hope you can help me soon.

2

Do I need to install some driver?

3

Dear @Diego_Gayango
I have sent the driver to you via Message, please check and try again.

4

Hi,

I,ve got the same problem as Diego, same logs and driver problem
Not easy to find the source code of the driver for compiling Where can I downloard it.

Many thanks
René

5

Additional information

I use QConnectManager_Linux_V1.6.4

Thanks
René

6

Dear @rpa
I have sent to you via Message, please check.

7

Thank you @silvia I have integrated it but it doesn’t work
The messages are the following

[11-27_15:09:51:160] network interface ‘’ or qmidev ‘’ is not exist
[11-27_15:09:51:160] atdevice_detect failed
[11-27_15:09:51:160] qmidevice_detect failed

with dmesg
[ 17.699942] usb 1-3.1: Product: USB Serial
[ 17.878445] usb 1-3.2: new high-speed USB device number 5 using xhci_hcd
[ 18.079022] usb 1-3.2: New USB device found, idVendor=2c7c, idProduct=0316, bcdDevice= 5.15
[ 18.079137] usb 1-3.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 18.079232] usb 1-3.2: Product: RG255C-GL
[ 18.079315] usb 1-3.2: Manufacturer: Quectel
[ 18.079413] usb 1-3.2: SerialNumber: ad1ad481
[ 18.102217] option 1-3.2:1.0: GSM modem (1-port) converter detected
[ 18.102638] usb 1-3.2: GSM modem (1-port) converter now attached to ttyUSB0
[ 18.103285] option 1-3.2:1.1: GSM modem (1-port) converter detected
[ 18.103687] usb 1-3.2: GSM modem (1-port) converter now attached to ttyUSB1
[ 18.104571] option 1-3.2:1.2: GSM modem (1-port) converter detected
[ 18.104956] usb 1-3.2: GSM modem (1-port) converter now attached to ttyUSB2

any idea

thank
René

8

You’re in the wrong topic.

9

Dear @rpa
Please check network card interface via AT+QCFG=“usbnet”

10

Hi

The related information on my equipment

AT+QCFG=“usbnet”
+QCFG: “usbnet”,0

Seems OK

11

Dear @rpa
Did you install the qmi_wwan driver?
lsusb -t

12

Hi Silvia

lsusb -t results :

/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 480M
|__ Port 3: Dev 2, If 0, Class=, Driver=hub/4p, 480M
|__ Port 1: Dev 4, If 0, Class=, Driver=, 12M
|__ Port 2: Dev 5, If 0, Class=, Driver=option, 480M
|__ Port 2: Dev 5, If 1, Class=, Driver=option, 480M
|__ Port 2: Dev 5, If 2, Class=, Driver=option, 480M
|__ Port 2: Dev 5, If 3, Class=, Driver=qmi_wwan_q, 480M
|__ Port 4: Dev 3, If 0, Class=, Driver=, 12M

I don’t have the qmi_wwan_driver installed

In the kernel we have

CONFIG_USB_NET_QMI_WWAN=y

13

Dear @rpa
Please use the latest version to try again.
I have sent to you via Message.

14

Hi Silvia,

we use the same.
We have found the problem-
In fact there was a module compiled staticaly in the kernel which were using wwan0 and wwan1- So the Quectel module was taking the next one available : wwan2 - After removing the faulty module the wwan0 is correctly allocated
Thank you for your help

Rpa