Lisa LCD
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9
Remote software update (RSU)
The Lisa features Remote Software Update (RSU). When the device starts up and the RSU feature has
been enabled, it will first check if a new software version is available. When that is the case, the device
will automatically update to the new version (certain conditions may apply, see
).
The Remote Software Update feature can be enabled for all devices. The RSU feature is dependent on
the operation mode/where the device gets its configuration from. In the coming section we describe how
your device(s) need to be programmed in order to make use of the RSU feature.
By default the Lisa will update its software from the Streamit update server.
9.1
Streamit Device Portal
When your device has been programmed to get its configuration from the Device portal, the RSU feature
can be switched on and off in the Device portal. When this feature has been enabled, your device will
automatically update to the latest version on the Streamit update server or to the version on your own
update server, depending on how this is configured in the Streamit Device portal.
If for any reason you would decide to update the software of your device to a different version, please use
the
. Note that the device will update back to the version on the provider’s update
server if RSU is enabled and the device resets. You can prevent this by disabling the RSU on the Device
portal. Preferably this is done before loading the different software version in the Lisa.
9.2
When will Lisa device(s) update automatically
The behavior of the Remote Software Update feature depends on the software that is present in the
device when the update is performed as well as on the software that is available on the server.
Under normal operation, the software in the device will be Release Software. This will only update when
the software on the update server is Release Software. You will not by accident end up with Beta
Software when using the Remote Software Update. However, there may be reasons to 'retract' a release
and therefore the device will downgrade to an earlier version, if Release Software with a lower version
number is placed on the update server.
Beta Software will only be required when Streamit staff will inform you about this. They will then also
provide you the necessary information to install this.
9.3
Forcing an update to a particular version
The Lisa will never automatically update to Beta software when running Release software. In order to
circumvent the automatic update rules and perform a remote software update that upgrades the Lisa from
Release software to Beta software, an unconditional update task can be executed. This is described in
section