User's Manual

Rajant Corporation BreadCrumb® ME4 v11 User Guide
03-100126-011 Version 11.0.0
5 Firmware Upgrade
Each BreadCrumb relies on low-level software known as firmware for proper execution. For a
BreadCrumb to communicate with other BreadCrumb devices or a BC|Commander client, the firmware
version of the device must be compatible with the firmware versions of all other devices within the
network, and with the version of BC|Commander running on the client computer.
Note
For procedures to install and upgrade the BC|Commander management application,
refer to the latest BC|Commander v11 User Guide.
The firmware is routinely updated by Rajant Corporation to add new product features, support new
applications, and to fix reported problems. To upgrade the firmware on a BreadCrumb, you must obtain
the appropriate firmware file for your BreadCrumb model from Rajant. Save the file on a computer on
which the BC|Commander management application has been installed.
5.1 Over The Air Firmware Upgrade
One method of upgrading the firmware is a process called “Over-the-Air (OTA) firmware upgrade”.
This is a remote process, controlled and initiated by a system administrator using BC|Commander.
Follow the instructions in the BC|Commander v11 User Guide (Administrative Tasks – Over-the-Air
(OTA) firmware upgrade) to perform the firmware upgrade process.
5.2 USB Firmware Upgrade
Another method is the USB firmware upgrade. This process takes place at the BreadCrumb's location
and requires a properly prepared USB storage device. To perform the firmware upgrade process, follow
these procedures:
1. Prepare a USB storage device with the appropriate firmware file using BC|Commander. Follow
the instructions in the BC|Commander v11 User Guide (Administrative Tasks – USB Firmware
Upgrade).
2. Connect the USB storage device to the BreadCrumb's USB port and turn on the BreadCrumb.
Note
With v11, the USB drive can be connected to a live BreadCrumb and the upgrade
process will begin automatically.
3. The firmware upgrade process will take several minutes. Observe the BreadCrumb's Status LED
to monitor progress.
(a) When the USB firmware upgrade begins, the Status LED will start blinking yellow, which
indicates progress. When the process nears completion, the blink rate will increase from
once per second to several times per second.
(b) If the firmware upgrade completes successfully, the Status LED will rapidly rotate between
red, green, blue, cyan, magenta, yellow and white colors.
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