LTE upgrade seems to have crashed

RouterOS General
1

Anyone knows what to do when LTE upgrade seems to have crashed? I started LTE firmware upgrade from GUI and it seems to be running for an hour now. Something tells me this is not normal. Terminal tells me:

[admin@MikroTik] > /interface lte/firmware-upgrade  
number: 0 
  installed: 16121.1034.00.01.01.03
     latest: 16121.1034.00.01.01.04
[admin@MikroTik] > /interface lte/firmware-upgrade upgrade=yes 
number: 0 
failure: already in progress

I wonder if it crashed? Is it safe to turn off the router if it stays in that “failure: already in progress” for a long time? I have hAP ax lite LTE6.

2

OK, finally I did a cold restart (the “failure: already in progress” did not go away in a day) - power off and on again and only then I could attempt to upgrade LTE firmware again. It was successful this time (did it via terminal not via GUI). However, documentation suggests doing AT+reset after firmware upgrade:

[admin@MikroTik] > /interface lte at-chat lte1 input="AT+reset"       
  output: +CME ERROR: Operation not supported

Any ideas if this failure has any impact on modem performance? Looks like documentation at https://help.mikrotik.com/docs/display/ROS/LTE#LTE-Modemfirmwareupgrade is not updated for hAP ax lite LTE6 as many other commands (e.g., /interface lte info lte1 once) do not work either.

3

I’d recommend filing a bug on the docs at help.mikrotik.com – you’re correct it doesn’t seem to cover the FG621-EA modem used in hAPaxLite.

This thread hard link the firmware as file to avoid FOTA: http://forum.mikrotik.com/t/chateau-lte6-ax-issues-with-modem-upgrade/170899/3

I don’t have the AT manual for this modem but google tells me the reset for FG621-EA is “AT+CFUN=15” .

4

I needed to go through this process as well and I can confirm that this command works for hAP Lite LTE6:


/interface lte at-chat lte1 input="AT+CFUN=15"

This sis the correct command to (software) reset the built-in Fibocom FG621-EA LTE modem.
Reboot afterwards required.

Thanks Amm0!

5

I found some more information about Fibocom FG621-EA modem (upgrade and few AT useful commands) in this post: https://www.ispreview.co.uk/talk/threads/mikrotik-syntax-help-please.40475/page-2

There are commands for cell lock:

/interface lte at-chat lte1 input="AT+GTCELLLOCK=1,0,0,6175,176"

AT+GTCELLLOCK=<mode>[,<rat>,<type>,<earfcn>[,<PCI>]]
< mode >: integer type; 0 Disable this function 1 Enable this function 2 Add new cell to be locked
<rat>: integer type; 0 LTE 1 WCDMA
<type>: integer type; 0 Lock PCI 1 Lock frequency

Reset command:
/interface lte at-chat lte1 input="AT+GTCELLLOCK=0"