Huawei+sun2000+reset+installer+password+work _top_ -

Connect to the inverter’s local WLAN hotspot. You can find the initial SSID and password on the label on the side of the inverter.

Before attempting a reset, try the standard default passwords. Note that newer firmware updates often force a password change upon first login, so these may not work on used units:

The physical reset must be completed within a once you start turning switches off.