Hi, For products and issues regarding any Huawei consumer products (i.e. mobile phones and tablets), please visit the Huawei consumer Website or Hotline Service.
Your phone undergoes a series of optimization in the background upon system update, which increases power consumption. For example, some apps need to be readapted and optimized in the background, Gallery will be reorganized, and files will be scanned again to detect security risks.
The optimization needs to be performed in the background when the phone is idle. Generally, the process will be completed within five hours if the phone is fully charged and kept idle, or within three days under normal usage. The time to complete the update may be longer if the phone is used frequently during this period. After the process is complete, the standby time will be normal again.
If the problem persists, it is advised that you should do a factory reset to make the phone is better. Restore factory settings will delete all data in your device's memory and storage, including your account settings, system settings, app data, installed apps, music, images, and documents, and restore your phone to its original factory settings. Back up your data before restoring your device to its factory settings.
If the issue still persists, please back up the data and bring your phone to the nearest Huawei service center for diagnosis with the Proof of Purchase.
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