Can the PIN code be changed? What should I do if I forget it?

1. The PIN code can be changed via the app: [Settings] > [More Settings] > [Security Settings] > [Change PIN Code]. 2. If you forget your PIN code: 2.1 If the app remains unpaired with GOAT: Navigate to [Settings] > [More Settings] > [Security Settings] > [Change PIN Code] in the app. Tap [Forgot PIN Code], then verify your ECOVACS HOME app account password to reset the PIN code. 2.2 If the app has been unpaired: Contact after-sales service for PIN code reset.