Flashing steps
mdalam073AxionAOSP 1.6 FINAL COMMUNITY for Mi A1 (tissot)
FOR NON-FLASHABLE ZIP:
1. Extract the ZIP file to your internal/external storage
2. Go to recovery
3. Wipe data, dalvik/cache, system and vendor
4. Flash boot.img to boot partition
5. Flash system.img to system partition
6. Flash vendor.img to vendor partition
7. Reboot Recovery (ignore No OS installed)
8. Format data
9. Reboot System
Enjoy!!!