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Important: Upgrade the firmware before upgrading the Legato application framework.
Config Trees: Legato currently overwrites private config trees during upgrading. An import/export script can be used to create a copy of config trees and reinstate settings after installation.
Contact your Field Application Engineer (FAE) to upgrade AR series targets.
Upgrade WP Firmware
Upgrade Legato Application Framework
Here's other info you may need to look at:
Legato 15.10 Beta release notes
The firmware requires both customer and carrier configurations to be upgraded.
Connect your target device to your host PC using a serial port over USB in Windows (the upgrade packages are one-click .exe files).
Go to Device Manager and check that the target has enumerated as a "DM" serial port. See Not Enumerating as DM Port? if your target isn't displayed in the list.
To determine the correct customer configuration package for your upgrade, connect to the target (through HyperTerminal or Tera Term), and run the AT command AT!PRIID?. It will return the PRI number, which should be one of these:
The hardware upgrade package includes Legato 15.10.0.Beta and important platform related configuration.
Download and run the configuration package applicable to your SKU (corresponding to the PN above):
SKU 9101011
File: 9101011_5501011_WP8548-G_07.04.06.00_00_DevKit_001.013_000-field.exe
download 9101011 configuration
SKU 1102621
File: 1102621_9904889_WP8548-G_07.04.06.00_00_Generic_001.000_000-field.exe
download 1102621 configuration
Double-click the .exe file to run the upgrade.
The target will boot in Airplane mode after the upgrade if this is the first use of this configuration.
The carrier configuration package includes the modem and application processor firmware and carrier-specific configuration.
Download and run the generic carrier configuration tool:
File: 9999999_9904559_SWI9X15Y_07.04.06.00_00_GENERIC_001.010_000-field.exe
download Beta carrier configuration
Double-click the .exe file to run the upgrade.
The target will boot in Online mode after the upgrade.
If the target is enumerating as an ECM device only (i.e., Ethernet over USB), use the command configEcm off in a Linux shell to allow DM to enumerate in the USB port.
If ECM-only enumeration is preferred, access the A5 console via UART, Ethernet, or USB (ADB), and run command configEcm on. Alternatively use configEcm to list optional parameters for the ECM configuration.
Ensure you upgrade firmware before upgrading Legato AF. Also, ensure you have the latest source code from GitHub.
On your development host, go to the Legato build toolchain installation directory (/opt/swi) and remove all files:
$ cd /opt/swi
$ sudo rm -rf *
Installation packages (including toolchain downloads) are available at the Sierra Wireless Source Legato Downloads page.
Select toolchain for either 32 or 64 bits and copy it to /opt/swi
$ mkdir -p /opt/swi
$ chmod u+x [toolchain.sh file]
$ [toolchain.sh file]
You may need to use sudo to run mkdir.
Then install and build Legato, and then set up the target software.
See Legato documentation for full information.