This script upgrades LTE firmware on compatible devices:
A temporary scheduler is created to be independent from terminal. Thus starting the upgrade process over the broadband connection is supported.
The firmware is downloaded over the air, so a working broadband connection on the lte interface to be updated is required! Having internet access from different gateway is not sufficient!
Just install the script:
Run the script if an upgrade for your LTE hardware is available:
Then be patient, go for a coffee and wait for the upgrade process to finish.