If you followed the steps but the password 00000 still fails, check these three issues:

The process for resetting the Huawei SUN2000 installer password is a high-stakes "sequence game" that works effectively if you follow the strict timing requirements

SUN2000-3-4-5-6-8-10KTL-M1 FAQ | HUAWEI Smart PV Global - Huawei

If the default password does not work, follow these steps precisely to restore the password to its initial state. This must be completed when the inverter has both AC and DC power. Resetting Password - SUN2000-(3KTL-10KTL)-M1 User Manual

: Connect your mobile phone to the inverter's built-in WLAN.

With trembling fingers, John entered the password and... voilà! The tool worked its magic, and the inverter's lights flickered back to life. John breathed a sigh of relief as he reconfigured the inverter's settings and rebooted the system. The solar panels began to feed electricity back into the grid, and the homeowner's energy bills would soon return to normal.