Hi, thanks for reaching out. Could you please tell us your model number first? You can also send us your device's SN so that we can suggest accordingly.
Open the cover of the device and take out the dustbin. There's a barcode on the device (not on dustbin). The SN is under the barcode like R0201S82418800.
If the device has already been added to the app, SN could also be checked there. See attached picture "info"
Hi, thanks for reaching out. Could you please tell us your model number first? You can also send us your device's SN so that we can suggest accordingly.
Open the cover of the device and take out the dustbin. There's a barcode on the device (not on dustbin). The SN is under the barcode like R0201S82418800.
If the device has already been added to the app, SN could also be checked there. See attached picture "info"