What should Huawei m9 do if it consumes fast power?

If the mobile phone consumes fast power and has short standby time, you can try the following methods:

1. screen closing and application settings: set the method, and then select settings > power saving management > protected background application, without checking the application marked as "high power consumption task" or selecting other unnecessary background tasks. After setting, the screen will automatically stop this power-consuming application.

2. Adjust the screen brightness: Setting method: Select Settings-Display-Brightness in turn, and adjust the brightness to reduce the value of the progress bar.

3. Restrain application consumption: Set the method to turn off Mobile Data and WLAN next to All in turn for Mobile Manager > Traffic Management > Traffic Ranking and make them in a gray state.

4. Restrict the authority of the third-party application to reduce unnecessary operation and power consumption: The setting method, first of all, is Desktop > Mobile Manager > Authority Management > Cancel the "Read Location Information" authority of the third-party application, and disable all others if it is unnecessary.

If the above methods can't be solved, it is recommended to back up the important file data in the mobile phone and take the warranty certificate to the after-sales outlets for processing.