I got the EMUI 9 update yesterday and none of my Google Apps were working.Found this: -google-apps-on-huawei-after-emui-9-update/, which is exactly the problem I'm having but those steps don't help. I ran the GMS installer 1.2 and it removed all google apps.
I had to rollback to EMUI 8.0. This was easier than expected through the HiSuite Huawei app for PC. Click on update/upgrade, then other versions. It should show you the last version and then click restore.
I then ran GMS installer, and Goo