RUTX11 modem not found

[marcus_f]

Modem is not found after some FW upgrade in the past.

Wed Aug 28 10:18:06 2024 kern.info kernel: [ 8306.934106] usb 3-1: new high-speed USB device number 32 using xhci-hcd
Wed Aug 28 10:18:06 2024 kern.info kernel: [ 8307.264145] option 3-1:1.0: GSM modem (1-port) converter detected
Wed Aug 28 10:18:06 2024 kern.info kernel: [ 8307.264534] usb 3-1: GSM modem (1-port) converter now attached to ttyUSB0
Wed Aug 28 10:18:06 2024 kern.info kernel: [ 8307.270002] option 3-1:1.1: GSM modem (1-port) converter detected
Wed Aug 28 10:18:06 2024 kern.info kernel: [ 8307.276494] usb 3-1: GSM modem (1-port) converter now attached to ttyUSB1
Wed Aug 28 10:18:06 2024 kern.info kernel: [ 8307.282809] option 3-1:1.2: GSM modem (1-port) converter detected
Wed Aug 28 10:18:06 2024 kern.info kernel: [ 8307.291139] usb 3-1: GSM modem (1-port) converter now attached to ttyUSB3
Wed Aug 28 10:18:06 2024 kern.info kernel: [ 8307.295749] option 3-1:1.3: GSM modem (1-port) converter detected
Wed Aug 28 10:18:06 2024 kern.info kernel: [ 8307.302093] usb 3-1: GSM modem (1-port) converter now attached to ttyUSB4
Wed Aug 28 10:18:06 2024 kern.info kernel: [ 8307.327651] qmi_wwan 3-1:1.4: cdc-wdm0: USB WDM device
Wed Aug 28 10:18:06 2024 kern.info kernel: [ 8307.329430] qmi_wwan 3-1:1.4 wwan0: register 'qmi_wwan' at usb-xhci-hcd.1.auto-1, WWAN/QMI device, 32:07:3a:07:8e:85
Wed Aug 28 10:18:06 2024 user.warn kernel: [ 8307.374027] [01-serial-symlink.sh] New device ttyUSB0 at /devices/platform/soc/60f8800.usb2/6000000.dwc3/xhci-hcd.1.auto/usb3/3-1/3-1:1.0/ttyUSB0/tty/ttyUSB0 appeared!
Wed Aug 28 10:18:06 2024 user.warn kernel: [ 8307.523168] [01-serial-symlink.sh] New device ttyUSB1 at /devices/platform/soc/60f8800.usb2/6000000.dwc3/xhci-hcd.1.auto/usb3/3-1/3-1:1.1/ttyUSB1/tty/ttyUSB1 appeared!
Wed Aug 28 10:18:07 2024 user.warn kernel: [ 8307.675362] [01-serial-symlink.sh] New device ttyUSB3 at /devices/platform/soc/60f8800.usb2/6000000.dwc3/xhci-hcd.1.auto/usb3/3-1/3-1:1.2/ttyUSB3/tty/ttyUSB3 appeared!
Wed Aug 28 10:18:07 2024 user.warn kernel: [ 8307.826019] [01-serial-symlink.sh] New device ttyUSB4 at /devices/platform/soc/60f8800.usb2/6000000.dwc3/xhci-hcd.1.auto/usb3/3-1/3-1:1.3/ttyUSB4/tty/ttyUSB4 appeared!
Wed Aug 28 10:18:23 2024 daemon.info gsmd[2488]: [__init:1165] error: [CMM] Failed to open modem at `/dev/` path!
Wed Aug 28 10:18:23 2024 daemon.info gsmd[2488]: [__init:420] error: [MODEM] Failed to initialize comm manager for `3-1 [2c7c:0306]` modem!
Wed Aug 28 10:18:23 2024 daemon.info gsmd[2488]: [__new_modem:697] error: [MODEM_MANAGER] Failed to initialize `3-1 [2c7c:0306]` modem!
Wed Aug 28 10:18:23 2024 daemon.info gsmd[2488]: [__modem_added:506] error: [MODEM_MANAGER] Unable to initialize `3-1 [2c7c:0306]` modem!
Wed Aug 28 10:18:25 2024 kern.info kernel: [ 8326.044987] usb 3-1: USB disconnect, device number 32
Wed Aug 28 10:18:25 2024 kern.info kernel: [ 8326.045643] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
Wed Aug 28 10:18:25 2024 kern.info kernel: [ 8326.049230] option 3-1:1.0: device disconnected
Wed Aug 28 10:18:25 2024 kern.info kernel: [ 8326.058978] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
Wed Aug 28 10:18:25 2024 kern.info kernel: [ 8326.061518] option 3-1:1.1: device disconnected
Wed Aug 28 10:18:25 2024 kern.info kernel: [ 8326.070240] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
Wed Aug 28 10:18:25 2024 kern.info kernel: [ 8326.073991] option 3-1:1.2: device disconnected
Wed Aug 28 10:18:25 2024 kern.info kernel: [ 8326.085942] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
Wed Aug 28 10:18:25 2024 kern.info kernel: [ 8326.086582] option 3-1:1.3: device disconnected
Wed Aug 28 10:18:25 2024 kern.info kernel: [ 8326.094850] qmi_wwan 3-1:1.4 wwan0: unregister 'qmi_wwan' usb-xhci-hcd.1.auto-1, WWAN/QMI device
Wed Aug 28 10:18:25 2024 user.warn kernel: [ 8326.125599] [01-serial-symlink.sh] New device ttyUSB0 at /devices/platform/soc/60f8800.usb2/6000000.dwc3/xhci-hcd.1.auto/usb3/3-1/3-1:1.0/ttyUSB0/tty/ttyUSB0 appeared!
Wed Aug 28 10:18:25 2024 user.warn kernel: [ 8326.283306] [01-serial-symlink.sh] New device ttyUSB1 at /devices/platform/soc/60f8800.usb2/6000000.dwc3/xhci-hcd.1.auto/usb3/3-1/3-1:1.1/ttyUSB1/tty/ttyUSB1 appeared!
Wed Aug 28 10:18:25 2024 user.warn kernel: [ 8326.434856] [01-serial-symlink.sh] New device ttyUSB3 at /devices/platform/soc/60f8800.usb2/6000000.dwc3/xhci-hcd.1.auto/usb3/3-1/3-1:1.2/ttyUSB3/tty/ttyUSB3 appeared!
Wed Aug 28 10:18:26 2024 user.warn kernel: [ 8326.588247] [01-serial-symlink.sh] New device ttyUSB4 at /devices/platform/soc/60f8800.usb2/6000000.dwc3/xhci-hcd.1.auto/usb3/3-1/3-1:1.3/ttyUSB4/tty/ttyUSB4 appeared!

What can I do in what order to find the modem again?

[Yes]

Hello,

Could you try to flash the firmware with a bootloader and see if the mobile modem would be back?

Here is a guide on how to do so: paste it in google search because I am unable to post link somehow… RUTXxx_Firmware_via_The_Bootloader_Menu

Let me know if it helps and if not, I would contact the seller of the device via which you brought from for further analysis.

br,
yes

[TeWe]

Here you go:

RUTX11 Device Recovery Options - Teltonika Networks Wiki

[Marija]

Hello,

Please let me know if the recovery options resolved the issue.

Best Regards,

[marcus_f]

Modem is still unreachable after FW update through bootloader (/index.html).

Also tried to reset to manufacturer setting with the reset button.

No luck, yet.

[Marija]

Could you please execute the lsusb command and share the output here? This will help me confirm whether the modem is still recoverable. Thank you.

Best Regards,

[marcus_f]

[Marija]

Hello,

Most likely, there is a hardware issue with the modem itself. From the output, I see that the modem is no longer recoverable, so the solution will be to send the device for RMA. Please fill out the “Contact us” form on our official website here , and you will receive all the instructions regarding the repair process.

Best Regards,