How to flash Pixel Expirience 9.0 on Xiaomi Mi A1

Pixel Experience is an AOSP based ROM, with Google apps included and all Pixel goodies (launcher, wallpapers, icons, fonts, bootanimation).

To flash this rom follow these steps:

1. Be sure to remove any PIN, Password, Fingerprint protection

2. Install ADB Tools and Drivers on your PC.

2. Unlock Bootloader if not already done.

   - Power Off the phone by using the Power key at first.
   - Press and hold the Volume Down + Power button for a couple of seconds to enter Fastboot mode
   - You can release held keys when the Fastboot Mode appears on the phone's screen.
   - In ADB folder Terminal type : fastboot oem unlock

3. Reflash stock 8.1, if you are not already on it, with Mi Flash Tool.

4. Boot in to TWRP with Terminal command : fastboot boot recovery.img

  - Then choose Format data and reboot bootloader with same command:
  - fastboot boot recovery.img

5. After boot TWRP again choose to Wipe System, Data and Dalvik Cache.

6. Put rom, twrp and magisk on your phone internal storage with thise commands:

 - adb push PixelExperience_tissot-9.0-20181012-0716-UNOFFICIAL.zip /sdcard
 - adb push twrp-installer-tissot--3.2.3-0.zip /sdcard
 - adb push Magisk-v17.1.zip /sdcard
 - adb push MagiskManager-v6.0.0.apk /sdcard

7. Than flash the ROM, and after that flash TWRP installer.

8. Now Reboot to Recovery.

9. Flash Magisk (Optional)

10. Reboot system. Than you go with first boot and automatic restart.

11. After first boot and setup, install Magisk Manager if it does not appear.
    (Only if you installed Magisk)

12. Profit!