If you want to repost this internal OTA to other websites (other than XDA itself), please ask me for permission, thanks.
This is early internal test build that close to release. Even though it's pretty close to stable, but still, please be careful when testing!
Now I think Android 10 for Nokia 9 is stable enough and will be released to public soon, so I think it's time to post it here.
If HMD will push Android 10 officially, you can install it under ADB sideload easily and link will be posted here.
Internal build version: AOP-513B-0-00WW-B01
It will be updated from: AOP-427F-0-00WW-B01, which is released October 2019 Security Update.
Let me tell you how to verify:
1. Dial *#*#227#*#* to check current Version. If older than AOP-427F-0-00WW-B01, update to 427F before proceed.
FYI, 427F is October 2019 Security Update.
Alternately, you can use command "fastboot oem getversions" under fastboot mode / Download mode to check current firmware version.
2. Install AOP-513A-0-00WW-B01-427F-0-00WW-B01-update.zip with adb sideload under recovery.
3. Reboot to normal OS and recovery again - it's not over yet.
4. Install AOP-513B-0-00WW-B01-513A-0-00WW-B01-update.zip with adb sideload under recovery.
5. Reboot your phone.
If Android 10 official update pushed publicly, link will be updated here.
To root the phone, you may want to use Magisk 20 released October 12th, 2019 or newer. I've uploaded stock boot image here if you have unlocked bootloader. There's no "Flashing is not rooted for fused device" issue under 5xxx build.
You can check overall experiences here (prototype, though): https://www.youtube.com/watch?v=v6ScYgISGFg
To prevent throttle error, I didn't upload them to Google Drive or other cloud storages. Sorry for inconvenience.