1. Battery 50+%2. Locked bootloaderStep 1: Place the downloaded zip in internal storage.Step 2: Go to settings -> apps -> show system appsand then give storage permission for Motorola update services.Step 3: Reboot the phone and then check for update in settings app.#Youtube video tutorial by Rocha Tech(Just watch the video without sound if you understand the language 😜)Ans: Your data is safe after installing the update. For more safety, you can backup your data as an additional safety measure.Ans: No, it will not work with bootloader unlocked. You need to flash the Oreo stock rom to be able to flash this on your device.