[Phone] Safely remove external devices from phone
If you remove an external device from phone when it is processing or transferring data, it may cause data loss or damage. Therefore, please make sure you remove your external devices by following two methods.
Method 1: Tap "Unmount external storage" in "Settings" -> "Storage".
Method 2: If you have not cleared notifications, you can remove your external devices by tapping "Unmount" after accessing system notifications.