Please see the instructions below on the best way to upgrade the u-blox TOBY-L280 module.
Download
Please use the following link for downloading the correct firmware file from our website
Module firmware upgrade options
To upgrade the module firmware:
In the top navigation tree, select SYSTEM.
In the SYSTEM navigation tree, select Software Update > Modem Firmware Update.
Starting the module firmware upgrade

Update operation select Upload image
Module select WWAN1 (tobyl2)
Storage select Root1
Firmware package select the toby firmware file (nm-toby-L280_FWXX_XX_XXX_XX_tar.gz) from your computer
Module upgrade process
Confirm the module firmware process has started.
Processing…
Module firmware is being updated, please stand by.
ยป Preparing firmware update for WWAN1 (tobyl2)
ยป Getting tobyl2 firmware package
ยป Stopping services
ยป Applying new tobyl2 firmware for WWAN1
The system will reboot automatically after the firmware upgrade is completed
ยป Firmware has been updated successfully, rebooting now