Upgrading

Procedure

1. Download the required software upgrade package from the technical support website.
2. Decompress the upgrade package.

   If the login password for logging in to the SUN2000 app or entering the Device Commissioning screen on the FusionSolar app is the initial password, you do not need to perform steps 3 to 5. If not, perform steps 3 to 7.

3. Click Local maintenance script on the app to generate a boot script file, see the FusionSolar APP and SUN2000 APP User Manual.
4. Import the boot script file to a PC.
5. Replace the boot script file (sun_lmt_mgr_cmd.emap) in the upgrade package with the one generated by the app.
6. Copy the extracted files to the root directory of the USB flash drive.
7. Connect the USB flash drive to the USB port. The system automatically identifies the USB flash drive and executes all commands specified in the boot script file. View the LED indicator to determine the operating status.

   Ensure that the ciphertext in the boot script matches the login password for logging in to the SUN2000 app or entering the Device Commissioning screen on the FusionSolar app. Otherwise, the user account will be locked for 10 minutes after the USB flash drive is inserted for five consecutive times.

   Table 7-4 LED indicator description

   LED Indicator	Status	Meaning
   	Green off	There is no operation with a USB flash drive.
   	Blinking green slowly	There is an operation with a USB flash drive.
   	Blinking green fast	An operation with a USB flash drive has failed.
   	Steady green	An operation with a USB flash drive is successful.

8. The system automatically restarts when the upgrade is completed. All LED indicators are off during the restart. After the restart, the indicator is blinking green slowly for 1 minute and then it becomes steady green, which indicates that the upgrade is successful.