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If a Version incompatible alarm is generated during the replacement of the MDU, battery
module, or battery management module, upgrade the software version.
Ensure that the software of the required version is available before upgrading the software.
When upgrading the software on the LCD, save the software to a USB flash drive and
connect it to the USB port on the MDU.
When upgrading the software on the WebUI, save the software to a portable computer and
log in to the WebUI.
Perform the upgrade when the system is not in discharge state and the BCB status is the
same (all are closed or open).
Before the upgrade, ensure that the load services are not affected or obtain written consent
from the customer.
WebUI
Choose Maintenance > Software Upgrade, select Choose File, find the correct package in
the corresponding path, and click Upload. After the upload is complete, choose Activate All
in the Software List and perform operations as prompted.
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