Service Functions SMA Solar Technology AG
68 SWebBox-TEN101232 Technical Description
11 Service Functions
11.1 Updating the Firmware
You have the option of updating the Sunny WebBox firmware. The update may be carried out with
or without Sunny Portal access. When the Sunny WebBox firmware is updated, all the settings and
data will be saved.
You can update the Sunny WebBox firmware in the following ways:
• Firmware update via the Sunny Portal
• Firmware Update via SD Card
11.1.1 Firmware update via the Sunny Portal
If the Sunny WebBox has portal access, you can either update the firmware automatically or
manually. For each data transmission to the Sunny Portal, the Sunny WebBox checks whether a new
firmware version is available. SMA recommends that you activate automatic firmware updates.
Automatic firmware update is activated on delivery.
NOTICE!
The Sunny WebBox file system can be damaged due to a power failure during
the firmware update.
If there is a power failure while you update the firmware of the Sunny WebBox, the Sunny
WebBox operating system may be damaged.
• Ensure that your Sunny WebBox is supplied with power at all times during the
firmware update. Do not disconnect the power plug.
During the update, the Sunny WebBox is briefly unavailable via the user
interface.
Operating the Sunny WebBox with a Power Reducer Box
You must deactivate automatic firmware updates of Sunny WebBox devices when
operating Sunny WebBox devices with Power Reducer Box devices. If this is the case,
update the firmware using an SD card (see section 11.1.2”Firmware Update via SD
Card” (page69)).
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