# Modem is unreachable after update to 07.06.16

**URL:** <https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043>\
**Category:** Networking Solutions\
**Created:** [October 25, 2024, 9:09pm UTC](https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043 "2024-10-25T21:09:29Z")\
**Posts on this page:** 10\
**Page:** 1

<div class="post-metadata">

**Author:** ![themsk](https://community.teltonika.lt/letter_avatar_proxy/v4/letter/t/a698b9/32.png) [@themsk](https://community.teltonika.lt/u/themsk)\
**Post date:** [October 25, 2024, 9:09pm UTC](https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043/1 "2024-10-25T21:09:29Z")

</div>

I have made update to latest firmware 07.06.16, on my RUT950 and now i have a red zone on top where say “modem is unreachable”. I dont use the modem and there is no SIM card in sim tray, but i dont think the sim is the problem.  
If i run in console the command: **lsusb** , i dont see any line containing :9008.  
Also, i try a some instructions to recover modem and still the same problem:

```auto
root@IOT:~# opkg update
Downloading http://opkg.teltonika-networks.com/afc0a8689fd9d4d239f5332e585c1efe784478f38e25946e9749f4f6803dcbbf/Packages.gz
Updated list of available packages in /var/opkg-lists/tlt_packages
Downloading http://opkg.teltonika-networks.com/afc0a8689fd9d4d239f5332e585c1efe784478f38e25946e9749f4f6803dcbbf/Packages.sig
Signature check passed.
root@IOT:~# opkg list | grep -e modem_updater
modem_updater - 5.2 - Modem firmware update tool by Teltonika
root@IOT:~# opkg install modem_updater
Package modem_updater (5.2) installed in root is up to date.
root@IOT:~# modem_updater -g
Command failed: Not found
Modem List:
Command failed: Not found

```

Please advise.  
router is not in warraty

---

<div class="post-metadata">

**Author:** ![themsk](https://community.teltonika.lt/letter_avatar_proxy/v4/letter/t/a698b9/32.png) [@themsk](https://community.teltonika.lt/u/themsk)\
**Post date:** [October 27, 2024, 11:08am UTC](https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043/2 "2024-10-27T11:08:21Z")

</div>

the problem persist even if i put different SIM cards in tray

---

<div class="post-metadata">

**Author:** ![luckman212](https://community.teltonika.lt/user_avatar/community.teltonika.lt/luckman212/32/369_2.png) [@luckman212](https://community.teltonika.lt/u/luckman212)\
**Post date:** [October 27, 2024, 8:22pm UTC](https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043/3 "2024-10-27T20:22:04Z")

</div>

Can you post output of all 3 commands:

```auto
lsusb

```

```auto
ubus call gsm.modem0 info

```

```auto
dmesg | grep modem

```

---

<div class="post-metadata">

**Author:** ![Marija](https://community.teltonika.lt/user_avatar/community.teltonika.lt/marija/32/17132_2.png) [@Marija](https://community.teltonika.lt/u/Marija)\
**Post date:** [October 28, 2024, 7:56am UTC](https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043/5 "2024-10-28T07:56:42Z")

</div>

Hello,

Unfortunately, if there is no `9008` when executing `lsusb`, it means that the modem is no longer recoverable. The only suggestion in this case would be to send your device for repair. Please contact your reseller for assistance.

Best regards,

---

<div class="post-metadata">

**Author:** ![themsk](https://community.teltonika.lt/letter_avatar_proxy/v4/letter/t/a698b9/32.png) [@themsk](https://community.teltonika.lt/u/themsk)\
**Post date:** [October 28, 2024, 2:15pm UTC](https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043/6 "2024-10-28T14:15:01Z")

</div>

```auto
root@IOT:~# lsusb                                                                                                                      
Bus 001 Device 001: ID 1d6b:0002                                                                                                       

```

```auto
root@IOT:~# ubus call gsm.modem0 info                                                                                                  
Command failed: Not found                                                                                                              

```

```auto
root@IOT:~# dmesg | grep modem                                                                                                         
[13.186791] Executing do_power_modem preinit_main ...                                                                               
[13.261943] Unable to retrieve modem usb info (No error information)                                                                
[13.268825] Unable to retrieve modem timing info (I/O error), using defaults...                                                     
[20.714802] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters                                             
[22.610822] usbserial: USB Serial support registered for GSM modem (1-port)                                                         

```

please tell me that it can be fixed ☹

---

<div class="post-metadata">

**Author:** ![themsk](https://community.teltonika.lt/letter_avatar_proxy/v4/letter/t/a698b9/32.png) [@themsk](https://community.teltonika.lt/u/themsk)\
**Post date:** [October 28, 2024, 2:20pm UTC](https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043/7 "2024-10-28T14:20:01Z")

</div>

Unfortunately i have this router bought from internet on second hand. It was working then…  
You think its a physical problem? Can i try a botloader rewrite?

---

<div class="post-metadata">

**Author:** ![luckman212](https://community.teltonika.lt/user_avatar/community.teltonika.lt/luckman212/32/369_2.png) [@luckman212](https://community.teltonika.lt/u/luckman212)\
**Post date:** [October 28, 2024, 3:01pm UTC](https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043/8 "2024-10-28T15:01:51Z")

</div>

@themsk Sadly, according to the output of your commands, the modem hardware looks to be faulty.

I haven’t opened one in a while so I can’t remember, but since yours it out of warranty already, it doesn’t hurt to open it and inspect if you can find any loose connections. I don’t know if the modem module is separate or soldered to the main PCB.

---

<div class="post-metadata">

**Author:** ![Marija](https://community.teltonika.lt/user_avatar/community.teltonika.lt/marija/32/17132_2.png) [@Marija](https://community.teltonika.lt/u/Marija)\
**Post date:** [October 29, 2024, 6:01am UTC](https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043/9 "2024-10-29T06:01:56Z")

</div>

Hello,

I recommend contacting the person or vendor from whom you purchased the router, as a repair is needed in this situation. _Unfortunately, there are no alternative recovery options for the device._

Please note that the warranty for these devices lasts 2 years. If the device is no longer under warranty, it may be recommended to consider disposal.

Best regards,

---

<div class="post-metadata">

**Author:** ![themsk](https://community.teltonika.lt/letter_avatar_proxy/v4/letter/t/a698b9/32.png) [@themsk](https://community.teltonika.lt/u/themsk)\
**Post date:** [October 31, 2024, 8:36pm UTC](https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043/10 "2024-10-31T20:36:28Z")

</div>

ok. thank you guys. i think i will keep it and use it whitout gsm failover 😪

---

<div class="post-metadata">

**Author:** ![system](https://community.teltonika.lt/user_avatar/community.teltonika.lt/system/32/15707_2.png) [@system](https://community.teltonika.lt/u/system)\
**Post date:** [November 9, 2024, 9:10pm UTC](https://community.teltonika.lt/t/modem-is-unreachable-after-update-to-07-06-16/10043/11 "2024-11-09T21:10:23Z")

</div>

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