Some regions require operators to disable b30, b42, and b48 bands. The disabled bands are reopened after the firmware
upgrade. Use the following commands to disable them again.
$ sudo apt install minicom
$ sudo minicom -D /dev/ttyUSB2
$ at!entercnd="A710"
$ at!band=0A,"Disable b30 b42 b48",100600000EC00000,000025009A0E19DF,0000000000000002
$ at!band=0A
$ at!impref="AUTO-SIM"
$ at!reset
Wait for the modem to answer AT commands:
$ at!band?
Confirm the disabled bands:
Update 5G module firmware
Steps
1. Firmware update:
a. Download the mbimcli tool and firmware file from the Dell Technologies
:
$ sudo systemctl stop ModemManager
$ tar Jxvf mbimcli.tar.xz
$ cd mbimcli
$ sudo ./mbimcli -d /dev/cdc-wdm0 --qdu-ota-update=ota.bin
NOTE:
The ota.bin is in the
Firmware
folder.
b. Reboot:
$ reboot
2. Switch carrier:
Setting Up the Ubuntu Operating System
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