Hello,
I’m having an issue trying to get adb to work with my quectel modem. The issue I’m having is that ‘adb devices’ does not return any output.
device is running rasbain 5.10.17-v71
The process I followed was section 4.2 of ‘Quectel_EC2X&AG35_QuecOpen_Quick_Start_V1.4_Preliminary.pdf’, and Denis_Syrf’s post here: EC_25E software development
relevent outputs:
lsusb
Bus 003 Device 002: ID 2c7c:0125 Quectel Wireless Solutions Co., Ltd. EC25 LTE modem
at+qcfg=“usbcfg”
+QCFG: “usbcfg”,0x2c7c,0x0125,1,1,1,1,1,1,1
OK
cat /etc/udev/rules.d/51-android.rules
SUBSYSTEM==“usb”, ATTR{idVendor}==“2c7c”, ATTR{idProduct}==“0125”, MODE=“0666”, GROUP=“plugdev”
cat .android/adb_usb.ini
0x2c7c
ls -la /sys/bus/usb/drivers/option/
drwxr-xr-x 2 root root 0 Jun 26 02:17 .
drwxr-xr-x 17 root root 0 jun 26 02:17 …
lrwxrwxrwx 1 root root 0 Jun 26 03:08 3-1:1.0 -> …/…/…/…/devices/platform/soc/fe980000.usb/usb3/3-1/3-1:1.0
lrwxrwxrwx 1 root root 0 Jun 26 03:08 3-1:1.1 -> …/…/…/…/devices/platform/soc/fe980000.usb/usb3/3-1/3-1:1.1
lrwxrwxrwx 1 root root 0 Jun 26 03:08 3-1:1.2 -> …/…/…/…/devices/platform/soc/fe980000.usb/usb3/3-1/3-1:1.2
lrwxrwxrwx 1 root root 0 Jun 26 03:08 3-1:1.3 -> …/…/…/…/devices/platform/soc/fe980000.usb/usb3/3-1/3-1:1.3
–w------- 1 root root 4096 Jun 26 03:08 bind
lrwxrwxrwx 1 root root 0 Jun 26 03:08 module -> …/…/…/…/module/usbserial
–w------- 1 root root 4096 Jun 26 02:17 uevent
–w------- 1 root root 4096 Jun 26 03:08 unbind
…
I’m not sure how to proceed at this point. I think it may be a driver issue(from reading https://github.com/bacnh85/Quectel_Linux_ADB_Troubleshooting) as port 5, the ADB interface, isn’t listed, but reading through Quectel_WCDMALTE_Linux_USB_Driver_User_Guide_V1.8.pdf, it’s not clear to me which of the four driver opetions in 6.1 is responsible for adm(CDC ACM; GobiNet; QMI WWAN, USB serial). Can anyone advise?