SUN2000-43KTL-IN-C1 
User Manual 
7 Man-Machine Interactions 
 
Copyright © Huawei Technologies Co., Ltd. 
 
Blinking green at short intervals (on 
for 0.125s and then off for 0.125s) 
An operation with a USB 
flash drive has failed. 
An operation with a USB 
flash drive is successful. 
 
Step 8  (Optional) The system automatically restarts when the upgrade is completed. All LED 
indicators turn off during the restart. After the restart, the green indicator is blinking at long 
intervals (on for 1s and then off for 1s) for 1 minute until it becomes steady on, which 
indicates that the upgrade is successful. 
 
The SUN2000 can also be upgraded through the Inverter Update in the SUN2000 APP. For details, see 
the SUN2000 APP User Manual. 
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7.2 Operations with a SmartLogger 
For operations with a SmartLogger, see the SmartLogger1000 User Manual or 
SmartLogger2000 User Manual. 
7.3 Operations with the NMS 
For operations with the NMS, see the iManager NetEco 1000S User Manual. 
7.4 Operations with the SUN2000 APP 
For operations with the SUN2000 APP, see the SUN2000 APP User Manual.