RUTX11 internal modem unreachable

Hi everyone, I have an issue with my RUTX11 with RUTX_R_00.07.04.4 firmware onboard. It worked fine until today when I have powered up the router and expected connection via LTE, but the “3g” and “4g” leds continues to blink together and the router doesn’t connect, but LAN and WiFi (both bands) are working as usual.
User interface says “internal modem unreachable”, I tried with factory reset without any effect.

Thanks for any help and suggestions, best regards.

Hello,

Perhaps you could login to the CLI of the device (System → CLI), username root, password is the same as WebUI, and run the command lsusb.
This will help me determine if the modem might still be recoverable. If in the list you don’t see a device ending in :9008, that means that the internal modem does not power on, and the device needs to undergo an RMA process if the warranty is still valid.

Best regards,

I just ran this command on my RUTX11, batch 0052
It does not find any device with string ending in 9008
Is there a different modem ID in use in some batches?

Here is my output

Bus 003 Device 001: ID 1d6b:0002
Bus 001 Device 001: ID 1d6b:0002
Bus 001 Device 002: ID 05e3:0610
Bus 004 Device 001: ID 1d6b:0003
Bus 002 Device 001: ID 1d6b:0003
Bus 001 Device 003: ID 0a12:0001
Bus 003 Device 002: ID 2c7c:0306

:9008 only shows up if the internal modem of the device is in EDL (Emergency download) mode. It will not show up under normal operation.
@Antonio In this case, the device might need to be sent back for RMA if the warranty is still active.

Hi Daumantas,
sorry if I’m so late to answer back, however I’ve read all the messages and now my router is on its way to RMA.
Thanks a lot for kindly assistance!

Antonio

1 Like

Hello Daumantas,

I have same issue in RUTX09 this happens after did the upgrade modem.
The first upgrade to the modem took about 10 minutes, I’m not sure if it was actually done or not because nothing appears, the router stays this whole time without communicating, after that the message continued to appear on the router that it was necessary to upgrade the modem after returning doing this the 2nd time the modem never recovered and the message “modem is unreachable” appears.
I am worried that there is a problem in the process and that it is causing this problem. I have a lot of equipment like this on customers and I am not sure about doing this process again on the rest, please check if there is a problem.
Attached is the troubleshoot that I managed to extract so you can analyze where the problem could have been.

Regards,
Carlos Vieira

This step-by-step guide on updating modem firmware may be a good reading.

GITHUB: Teltonika RUTX device: Modem Firmware Recovery.pdf

Cheers!

Hello Petrhacker,

Thanks for your share unfortunately with this tutorial i don’t recovery my modem still with problems, we have another option to recovery?

image

Regards,
Carlos Vieira

I have a RUTX11 with Firmware 7.10.2 that has a modem in Emergency Download Mode

# lsusb
Bus 003 Device 001: ID 1d6b:0002
Bus 001 Device 001: ID 1d6b:0002
Bus 001 Device 002: ID 05e3:0610
Bus 004 Device 001: ID 1d6b:0003
Bus 002 Device 001: ID 1d6b:0003
Bus 001 Device 003: ID 0a12:0001
Bus 003 Device 002: ID 05c6:9008

# modem_updater -s 
[INFO] Looking for EDL devices.
Found EDL device: /sys/bus/usb/devices/
/3-1
[INFO] Done.

What can I do to try to recover this modem please?

@Daumantas I have manually mounted the Quectel EG06ALAR04A01M4G_01.005.01.005 firmware update from Teltonika’s server via sshfs to /tmp/mdmfw

And I have executed

modem_updater -n 0 -i 3-1 -d Quectel -p /tmp/mdmfw -f

It prints a bunch of output, but ends with an infinite pause at

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 DO NOT TURN OFF YOUR DEVICE DURING THE UPDATE PROCESS!
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Starting flasher...
Found EDL device: /sys/bus/usb/devices//3-1
[000.000]: Version: QFirehose_Linux_Android_V1.4.18
[000.000]: Builded: Oct 30 2024 08:59:19
[000.002]: find 'prog_nand_firehose_9x45.mbn'
[000.002]: find_firehose_mbn prog_nand_firehose_9x45.mbn
[000.002]: qusb_read_speed_atime speed: 480, st_atime: 20241105_23:34:52
[000.003]: P: /dev/bus/usb/003/002 idVendor=05c6 idProduct=9008
[000.003]: C: /dev/bus/usb/003/002 bNumInterfaces: 1
[000.003]: I: If#= 0 Alt= 0 #EPs= 2 Cls=ff Sub=ff Prot=ff
[000.003]: E: Ad=81 Atr=02 MxPS= 512 Ivl=0ms
[000.003]: E: Ad=01 Atr=02 MxPS= 512 Ivl=0ms
[000.003]: tmp=/sys/bus/usb/devices/usb3/../driver, driver=../../../../../../bus/platform/drivers/xhci-hcd
[005.160]: inf[0] ep_in -1/4096, errno = 110 (Operation timed out), timeout=5000
[005.160]: qusb_noblock_read read=0, errno: 110 (Operation timed out)
[005.160]: qusb_noblock_read cur=0, min_size=1

It stops there and never continues. Please help!