The Chinese YAL-AL00 version runs HarmonyOS. Flashing EMUI onto it is difficult due to different partition layouts. Not recommended.
Example valid firmware filename: Nova5T_YAL-L21_10.1.0.265_C432_EMUI10.1.0_05015YHW.zip nova 5t flash file
If you face any issues during the installation or need a specific region firmware, feel free to leave a comment below! The Chinese YAL-AL00 version runs HarmonyOS