Install TWRP Recovery

twrp adb fastboot

Source

• https://www.getdroidtips.com/download-latest-magisk-zip-magisk-manager-root-phone/

1. Install ADB, Fastboot and Android USB drivers (if necessary) on a PC

2. Download TWRP Recovery from https://dl.twrp.me

3. Unlock the bootloader on the device

   1. Enable Developer Mode

      1. Got to Settings > About Phone
      2. Tap the Build Number multiple times until a toast or popup shows up, saying you’re now a developer

   2. Go to Developer Settings now and enable OEM Unlocking

   3. Connect the phone to a PC via USB

   4. If the phone runs Android 5.1 or lower run

      fastboot oem unlock

      for Android 6.0 or higher

      fastboot flashing unlock

   5. Use the volume buttons to move around in the menu on the phone screen and highlight Yes, then press the power button to confirm

4. Power off the phone

5. Boot into the bootloader (press volume up and the power button simultaneously until the bootloader menu shows up; could also be another combo)

6. Connect the phone to a PC via USB again

7. Flash the downloaded TWRP Recovery image (replace twrp.img with the actual file name)

   fastboot flash recovery twrp.img

8. Once the flashing is done, reboot

   fastboot reboot