Libre LS9 - Creating Single-Image; Firmware Upgrade Methods; Firmware Upgrade Using USB Method

LS9 User Guide
Libre Wireless Technologies User Guide : LS9 / LS9AD, Ver. 5.3 Page 17 of 75
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3.1.2 Creating Single-Image
Single-Image Update is used to update the HOST-MCU Firmware, FENV, Device-Webpage,
and LS-Application Image simultaneously, by combining the Application Image, FENV,
Device-Webpage files and HOST-MCU Firmware Image.
For upgrading HOST-MCU Firmware, combine the HOST-MCU Firmware-Image file with
LS9 Application Image, using the Software Customization Kit (Software Customization
Kit_LS9_vx.x).
To generate the customized Single-Image for LS9, see the document available in Libre
Portal, “LibreWireless-TechNote_LS9_Software_Customization_Kit”
3.2. Firmware Upgrade Methods
 Before updating the LS9 firmware onto the modules, see section 3.1, to ensure the
firmware upgrade guidelines are followed. If the guidelines are not followed, it shall
result in LS9 modules non-functional.
 For Modules with GCast Keys and Certificates programmed, only GC4A TZ
firmware should be loaded.
 Libre support for GCast Non-TZ firmware is not available, from October 2016
and onwards.
 For development purpose, customers can get LS9 Modules with Libre GCast Keys
and certificates programmed, from the Libre Sales team.
3.2.1 Firmware Upgrade Using USB Method
For USB Method the name of the Firmware Image should be 83_IMAGE.
- This image is a standard image file
- This image is used for USB update
- Size of this image is 140-150MB