Huawei P8/P9 Lite 2017 phone - Phone wakes up at 2am

[AC Question]

Hey guys!
So, this is my first time having an Android phone. Got a Huawei P8/P9(depends on the country, here in the EU ) 2017 and I really love it. One thing I noticed though: According to the built-in battery meter, my phone starts to lose charge fast after 2am till morning (about 10% is lost). Every night, exactly the same time. After I looked at the Consumption Levels option I see that Android OS is the highest, checking the details it kept my phone running for 2 hours. Obviously, first thing I tried is : Disable all the auto updates(google play, maps, the google app), deleted all the pre-installed games and other bloatware apps. Then I disabled all the notifications. Wifi and GPS is off for the night. Disabled Google's location history service, the wifi is set to never stay awake and the scan settings are also off, not allowing anything to wake my wifi. Also disabled auto sync and auto backup.
What might cause this strange behaviour? Is there a way to see wakelocks without rooting?

 

[belodion]

I had something similar happen on one of my phones. Turned out it was a pre-installed security app that had somehow become set to perform a scan at the same time each day, in the early morning. How the change occurred I don't know.

https://forums.androidcentral.com/showthread.php?t=409154

 

[Drake911]

Hm ... you might be right. I do have an app called "Phone Manager" and in that app I have a virus scan. I think its a pre-installed Avast scanner(it says "powered by Avast"). Now, the question is: How do I turn this thing off, without root? On most of the apps I could press the disable or force stop buttons, but this is like the system processes, the disable and force stop is grayed out. I did set it to no auto update the virus database, and the scan speed from full to quick + disabled something called "Cloud scan". Hope that does it. In the meantime, any tips from Huawei users how to disable it? Will installing a real Antivirus app disable the default, so I can set up the app version correctly?

 

[belodion]

I don't recall how I fixed it in my own case, but it was simple. The app was McAfee. I think I just switched off the scan option in the app's settings.

I'll move the thread to the P9 forum, shall we say, for Huawei-specific suggestions.

Also, welcome as a new member.

 

[Drake911]

Thanks for the help ^^ I hope I can solve it without having to call their support.