No LTE/4G interface on a TL-MR6400 v4?

Installing and Using OpenWrt
22

I have seen in your GitHub, there is 22.03.5 version, with the same 2022-11-29 ipk file. Does that mean it is suitable for the 03.05 version?

23

Yes, https://github.com/mrhaav/openwrt/raw/master/22.03.5/uqmi_2022-11-29-0.10_mipsel_24kc.ipk is for OpenWrt version 22.03.5.

But, https://github.com/mrhaav/openwrt/raw/master/22.03.3/uqmi_2022-11-29-0.10_mipsel_24kc.ipk should work for OpenWrt 22.03.3.
Can you paste the syslog when the modem is initiated?

24

Thanks for clarification, I think I have found some of the reasons of my issues. If you dont mind I list them here:

  • After installing and rebooting the LUCI asked for installing the "luci-proto-qmi" than I was able to see the connection data. If its normal, maybe would be wise to include it to GitHub...
  • It turned out my LTE connection (Vodafone) loosing sympthom (after 6+ hours...) could only be solved with powercycling on the TL-MR6400 v4. I still not sure was the link broken from the provider side or it has some internal roots. Simple restarting the interface was not solving the issue. (registration error)
    Nontheless I included a Tasmotised power outlet before the rooters PSU, monitoring 8.8.8.8 ping, and make a power cycle upon need.

So it works now.

Thank you again!

25

You can try to "lock" to the Vodafone PLMN code to make the re-connection work better.

uci set network.<your interface>.plmn=<vodafone plmn>
uci commit network