Binding the charger requires the Charger's SN (Serial Number) + PIN. The QR code on the device only contains its SN. Only the QR code on the instruction book contains SN + PIN.
Binding the charger requires the Charger's SN (Serial Number) + PIN. The QR code on the device only contains its SN. Only the QR code on the instruction book contains SN + PIN.
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