Some firmwares require a digitally signed file. If this fails, you need FusionSolar installer-level support or a direct RPC reset via the SmartLogger maintenance port (requires Huawei proprietary cable).
: Turn the AC and DC switches back on. The inverter will restart. huawei+sun2000+reset+installer+password+work
. This process must be executed while the inverter is receiving both solar (DC) and grid (AC) power. Preparation Some firmwares require a digitally signed file
There are several online generators and Python scripts available (often found on GitHub or solar forums) that take your Serial Number as input and output the reset code. This is the standard "workaround" used by technicians when the default passwords do not work. huawei+sun2000+reset+installer+password+work
: Wait until all LED indicators on the inverter panel are completely off.