This HOTA will downgrade your system to Nougat version
You are recommended to update using Wi-Fi and make sure that the remaining power is greater than 50%.
●We recommend that you back up any important data before updating.
●If you have any third-party apps with control over root permissions or uninstalled system files, an online update will fail. If you encounter such a situation, it is recommended to update your device via an SD card, or visit an authorized Huawei service center for assistance.