How to update L19C636B361 to B386

[tuilakhang]

I'd tried so many ways but didn't work, so I thought can I downgrade to EMIU 4.0 follow the offical page of HW and update it to B386, is it possible?
And after I dload "HUAWEI P9 Rollback Package (EVA-L19, from EMUI5.0+Android7.0 rollback to EMUI4.1+Android 6.0, C900B300)", I have to dload EMIU 4.0 or I can dload B386 after that?
Sorry for my bad English

 

[rhodondendron]

maybe use firmware finder? why should you rollback if want to update?

 

[kukubau]

You need to flash B182 firmware package (http://update.hicloud.com:8180/TDS/data/files/p3/s15/G1079/g104/v74994/f1/full/update.zip first after flashing the rollback package.

Then you will receive the first Nougat 7.0 firmware B383 via system update and 2 more updates up to B386.

Post back and a thanks will be nice.