Cannot identify the cause of high battery drain.

[drarkayl]

I have a Huawei Mate 10 pro and have been using it for about 9 months.
I used to have amazing battery life with close to 8-9 hours of SOT ( and still had like 20% remaining never really went too low).

Recently I have been getting a battery drain of over 20% per night even if the phone is in doze mode.
I tried every method of finding out the battery drain and could not find it, assuming its a system bug i reset the phone but it did not fix anything.

I have wifi scanning and data always on turned off , so it disconnects mobile data and wifi if the phone is not being used.
I have just factory reset my phone and am posting screenshots of all my battery monitoring.
https://imgur.com/a/vfa4SGo

Please help me identify what is causing this battery drain.

 

[mustang7757]

Ok thank you for verifying, have you switch anything at home like wifi from 2.4ghtz to 5 or other way around?

Yes. I have tried pretty much every combination of data, wifi, location services.

 

[drarkayl]

That's very strange. That battery usage under phone radio shouldn't happen with the SIM card out and disabled. You could try this, just in case Gsam is misrepresenting the stats.

- Get ready before going to sleep, restart the phone and don't touch it until the morning.

- First thing in the morning check the memory/ram usage for the last 6 hours, take a couple of screenshots and see what's in there.

Maybe you could see some different background process on those stats.

When you say RAM usage, should I use a specific app? I don't think GSAM provides stats on RAM. It does on CPU frequencies which are always low.

 

[Javier P]

When you say RAM usage, should I use a specific app? I don't think GSAM provides stats on RAM. It does on CPU frequencies which are always low.

No, I mean from the stock settings. Not sure where to find them on a Huawei phone, though. Probably under settings - memory/RAM or something similar. If you can't find them you can enable the Developer Options and use them from there.

 

[mustang7757]

When you say RAM usage, should I use a specific app? I don't think GSAM provides stats on RAM. It does on CPU frequencies which are always low.

Battery saving mode see what being active and sleep also

 

[Javier P]

This is from the Developer Options on my phone.

 

[drarkayl]

Heres some further insight for the recent stats I got

These are from the alarms section on BBS

View attachment 303942

View attachment 303943

are these of any interest? these were background processes/wakelocks running while I posted the last screenshot.


Would it be better if I boot into safemode and then track the RAM usage as you suggested? Just to eliminate any other interference.

 

[drarkayl]

Ok thank you for verifying, have you switch anything at home like wifi from 2.4ghtz to 5 or other way around?

Well, the wifi I use is not in my control, I live in student housing so I have a couple of networks I can connect to. Since the issue persists with wifi off I don't think this is the case.

 

[belodion]

Incidentally, am I right in thinking that you've enabled More Stats in GSam?

 

[mustang7757]

Well, the wifi I use is not in my control, I live in student housing so I have a couple of networks I can connect to. Since the issue persists with wifi off I don't think this is the case.

Yeah your right about that .

 

[mustang7757]

Well, the wifi I use is not in my control, I live in student housing so I have a couple of networks I can connect to. Since the issue persists with wifi off I don't think this is the case.

But you do use a power saving mode correct?

 

[drarkayl]

Incidentally, am I right in thinking that you've enabled More Stats in GSam?

Yes I have

 

[drarkayl]

But you do use a power saving mode correct?

No I don't use a power saving mode. I don't think crippling the phone using that mode is a fix because its just gonna reduce resolution and reduce cpu frequency.

 

[mustang7757]

No I don't use a power saving mode. I don't think crippling the phone using that mode is a fix because its just gonna reduce resolution and reduce cpu frequency.

It should be in optimized mode like how Samsung are out the box

 

[drarkayl]

It should be in optimized mode like how Samsung are out the box View attachment 303951

I have

performance mode
battery saving mode
ultra batter saving mode

none are selected, so I assume im in the optimized mode equivalent.

 

[mustang7757]

I have

performance mode
battery saving mode
ultra batter saving mode

none are selected, so I assume im in the optimized mode equivalent.

Gotcha , I would try the battery mode just to see results can always go back .

 

[pkcable]

I wonder if @B. Diddy can help here?

 

[drarkayl]

ok, so I have factory reset my phone again.

Logged into only 1 google account and haven't updated any default apps yet.

Will report back with the results soon.

 

[B. Diddy]

I wonder if @B. Diddy can help here?

I've been following this peripherally, but I'm afraid I don't have anything to suggest that hasn't already been tried.:-\ I'd guess a glitch in the firmware, but I don't know how easy it is to reinstall the firmware (not just factory reset).

 

[drarkayl]

Fresh factory reset. No default apps updated.
Only GSAM installed.

Again same issue:


The wakelock detail :

The ram usage as asked for:



This might be something worth looking into, which I have just noticed
The phone was just kept on the table but still, I can see significant motion sensor is being used pretty high:

 

[belodion]

30min of significant motion, with the phone motionless on a table? That suggests a serious hardware or software fault.
Can you gain access to the Service Menu to test the relevant sensors? It may be via *#0*# on the keypad.