Why does it prompt to use the genuine filter after replacing the filter?

Solution:

Xiaomi Smart Air Purifier 4 has an RFID tag module. When a new genuine filter with an RFID tag is replaced, the life of each filter can be accurately identified without the need to manually reset the filter life. When the new genuine filter is installed and the prompt to install the genuine filter appears, please confirm whether the original genuine filter is used, check whether the filter installation position is in place, reinstall the filter, power off for 10 seconds and restart. If the above is invalid, please contact the after-sales inspection.