Firmware uograde problem

[Skordan74]

Hi,
I have a MikroTik SXT R running RouterOS 6.49.19 (mipsbe) with LTE modem R11e-LTE. The LTE interface frequently goes into “resetting” and I see repeated lte1 link down / link up in logs, even when signal looks OK.

I’m trying to upgrade the LTE modem firmware (CP):
/interface lte firmware-upgrade lte1 shows installed MikroTik_CP_2.160.000_v015 and latest ..._v021, but when I run:
/interface lte firmware-upgrade lte1 upgrade=yes
it starts “downloading via LTE connection” and then fails because the LTE link drops during download.

I can’t connect this router to another WAN (only LTE is available). Is there any way to download the CP firmware file manually (offline) and upload it to the router, or any workaround to complete the CP firmware upgrade without a stable LTE download? Any recommended troubleshooting steps for frequent LTE “resetting” on R11e-LTE?

[lurker888]

It's the firmware-file parameter. https://help.mikrotik.com/docs/spaces/ROS/pages/30146563/LTE+5G#LTE%2F5G-Modemfirmware-upgradecommand

[jaclaz]

Check:

LTE Modem Firmware Upgrade - Has anyone got any troubleshooting tips?

I’ve been trying to upgrade the firmware of an LtAP R11e-LTE Modem, but failing each time. RouterOS/Bootcode: v6.48.6 LTE Firmware: MikroTik_CP_2.160.000_v018 Has anyone had experience with issues with LTE under RouterOS v6.x that have been resolved by upgrading to RouterOS v7? Is the upgrade protocol documented anywhere? I can’t seem to find anything. e.g. is it HTTP/FTP etc to some server? What server? We have implemented our own EPC server in order to provide Public IPs to our LTE CPE d…

https://blog.linitx.com/how-to-update-the-mikrotik-lte-modem-firmware-via-local-file/

See also:

How to update modem firmware r11e-lte6 without an lte connection?

After a few years without issues, 3 days ago the router SXT LTE6 kit stopped to work. I tried the SIM but it works perfectly on another router. So I begin to update the firmware uploading routeros to 7.19.4 stable release. Update was right but I found router used a very old firmware for the modem (see image). I read the method for Local File Upgrade, but I'm not able to locate where to download an up-to-date version of the firmware. Could someone give me a resolutive information? [lte1]

If you connect to
https://upgrade.mikrotik.com/firmware/R11e-LTE/latest
your browser will download a file called "latest" that you can open in notepad or other text editor.

Contents should be:

MikroTik_CP_2.160.000_v021

If it is the right file, then the actual file will be:
https://upgrade.mikrotik.com/firmware/R11e-LTE/image