Locked Huawei FIG-LX1 with Android 8.0.0 full filesystem dump is possible!!!
It was locked with unknown user lock.
It had FRP locked.
The BL/phone was locked.
The method should work for all Kirin 659 with Android 8 and Android 9 (but I tested only on Android 8).
Feel free to contact me, if needed 🙂
I can confirm that he method worked on a Huawei ANE-LX1 as well!
After exhausting testings on more then 10 different devices I can say the method works for all Kirin 659 devices locked with 4 or 6 numbers PIN.
If locked with password, the method also works with dictionary attack.