JKM-LX1 9.1.0 (C185) Downgrad firmware

how to reset bypass google account Huawei Y9 2019  frp JKM-LX1 9.1.0 done after downgrade firmware

flash with sd card after enter to  upgrade mode

JKM-LX1 9.1.0 (C185) Downgrad firmware
android 9.1.0.220(C185E1R5P1T8)

after downgrade Huawei Y9 2019 emui 9.1.0

remove frp with methode safe mode