Power consumption of my phone/tablet is high after a system update

Problem:

The battery standby time is normal before the system update. However, the power consumption increases significantly after the update and the standby time shortens.

Cause:

A series of optimizations will run in the background after an update on a new phone or tablet, for example, some apps need to be re-adapted, Gallery will be re-organized, and files will be fully scanned to avoid security risks. All these will increase power consumption. Generally, such optimizations will be completed after three days. (It may take a longer time if there are a large number of images, videos, and files.) After learning your usage habits, the system will dynamically adjust the processor power consumption to further improve the battery life.

Solution:

The optimizations need to be performed in the background when the phone is idle. Generally, the process will be completed after five hours if the phone is fully charged and kept idle, or after 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 optimizations are complete, the standby time will become normal again.