Help How downgrade ANE-LX1 from android 9 to android 8?

[bibic]

Hello to all,
I want to downgrade ANE-LX1 from last android 9 to android 8 for frp remove without box. There is firmware ?
Thanks

 

[salvo1278]

Solved - Huawei Nova 3e (Huawei P20 lite) ANE-LX1 9.1.0 Downgrade, IMEI Repair & FRP Lock Reset