Hello, I’ve a routerOS 7.13.5 model SXTR LTE6 . I would like to lock a cell so I checked the parameters as earfcn and phy-cell id of the current tower and I used the script as recommended by Mikrotik manual but the output system always writes "+CME Error: Operation not supported. you can see the attachment below for details.
Thank you for your answers.
Which modem firmware you have? Is there R11e-LTE6 modem?
[admin@MikroTikLTE] > /interface lte firmware-upgrade lte1
installed: R11e-LTE6_V036
latest: R11e-LTE6_V038
Hello, here it is
installed: 16121.1034.00.01.01.04
latest: 16121.1034.00.01.01.04
There is Fibocom FG621-EA modem (not R11e-LTE6). RoS documentation about LTE has examples dedicated for R11e-LTE and R11e-4G. So for Your modem it don’t work.
I found solution in this post: https://www.ispreview.co.uk/talk/threads/mikrotik-syntax-help-please.40475/page-2
/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"
Now the output is “OK” as you are able to see just below
[admin@MikroTik] > interface lte at-chat lte1 input=“AT+GTCELLLOCK=1,0,0,3350,170”
output: OK
I hope it will works and the cell is actually locked. I’m going to check in the next days and I will let you know. Thank you for your precious advice and time.
Is there any way to lock both primary and CA band on FG621-EA ?
ROS docs do have an example for FG621-EA as well. Just look here, there is an example under “for FG621-EA”: https://help.mikrotik.com/docs/display/ROS/LTE#LTE-UsingCelllock
As far as I know this is impossible for any modem. A disconnected modem can decide to which cell it wants to connect to. But even in some cases the provider can hand you over to another cell - despite cell lock. This is how 3gpp works. And CA bands are assigned by the network provider. The LTE modem is not actively involved in this process in any way; it just receives CA bands. So you can’t lock them in any way. Impossible.