Battery drain after updating to EMUI 9 - Huawei P10 Plus Questions & Answers

So Rogers released the update to EMUI 9/Android 9 a couple of days ago and after updating the battery drain is absolutely horrendous! My battery was at 85% when I went to bed last night, I closed all apps, woke up this morning at 27% The phone itself was a lot warmer than usual. Anyone else having this issue after updating and have any suggestions to fix it?

Android 9 still bug wait this months will updates fix all

Anyone else with the same issue? @ritchi3, is the same after the day of settling down? Usually after the update, some time is needed for all the apps/services to come to normal battery usage. Any other comments on the update would be helpful. Thanks!

velvel said:
Anyone else with the same issue? @ritchi3, is the same after the day of settling down? Usually after the update, some time is needed for all the apps/services to come to normal battery usage. Any other comments on the update would be helpful. Thanks!
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No change for me, battery drain was still happening yesterday. I just ended up resetting the phone. It could have been due to an app that didn't like the update. After resetting and just leaving the phone alone after an initial setup, the battery drain seemed to no longer be there.

It must have been some app. I've updated this morning and all is running fine. Currently on 35% with 3.5 SOT and part of that was the update this morning. Everything seems to run fine, very happy with the update.

My girlfriend is having the same problem. :/ Anyvody had this issue and did not have to reset the phone?

i have solved
download apps:
-Killapps
-All in OneToolbox
settings:
sleep after 1 minute
Phone Manage everyday Optimise!!!
Optimise battery usage
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this is my best battery very long life

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Battery drain?

Stock ROM, unlocked and rooted, flashed LTE enabler zip. Still on JWR66V.
Charged phone yesterday, went out, when I got home it was still around 70% battery so I did not put it in the charger. Woke up, tried to open Facebook messenger to read a message, app took a bit to load, so I just closed it and put the phone down. When I looked again, it was at 18% battery. Hardly used it.
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Any ideas? Took it off the charger about an hour ago at 91% now at 79 with little use.
Turn off Facebook auto update and gps
Sent from my shiny new(bought last Nov), scratch less Nexus 4!
Why would either of those things cause a battery drain like that?
Seems a little less since a shut down and restart. But still curious..?
You have Google Services battery drain. Check http://forum.xda-developers.com/showthread.php?t=2385843
Yeah, also make sure currents isn't auto updating..
Anything pulling data on a regular basis will use battery.. Notifications, etc because they cause the app to basically run all the time.
Sent from my shiny new(bought last Nov), scratch less Nexus 4!
I get all that. I've never seen this much of a battery drop while the phone was idle.
Yeah, all my sync is on and i'm constantly connected to wifi. Never seen a idle drop that much.

Terrible battery life

I have a huge problem with battery life on my G2. Everything started after playing with Kitkat custom roms and kernels.. With every single combinations (rom + kernel) I always have battery life problem. Yesterday I decided to go back to JB and see how it will works, but.. I have same issue on it.. I am using my phone for 19 hours and 2.19h on screen and 27% of battery left. What can I do to deal with this problem?
Also curious...
Few screenshoots from wakelock detector.
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xtynekk said:
Few screenshoots from wakelock detector.
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Here's an idea: Uninstall all that crap and test again.
Also, post English screenshot if you want help. This isn't a ->Insert your weird language here<- forum.
I'd clean reinstall a new ROM (I'm on cloudy G3 with native kernel) and just use Clean Master to help boost battery life. Mine is very good so far. Around 5 hrs of SOT and almost 3 days of standby.
To the OP,
Are you restarting your phone in either silent or vibrate? That's what caused my 1013 wakelock in the past. I always reboot without vibrate/silent on now, and have not seen this issue.
Secondly, game playing will use a lot more battery than normal. It heats up the phone and works the GPU/CPU. For example, my battery only lasts 3.5 hours with Ingress playing.
Third, looks like you have some Android OS wake locks. Do you have Google now/location settings on and reporting?

[Q] Start over or keep flashing? battery issue

Hi everyone,
I'm a bit new to this but bear with me. I got an S5 SM-G900A this week with OA1 loaded on monday night. After spending tuesday marveling at how much bloatware was on it and how horrible the battery life was I rooted and began freezing and uninstalling some apps. Day 2 with the phone was also very bad, it nearly died in 8 hours with less than 1 hour screen time. Today, Day 3, I began tweaking a lot of the settings to see if I could get it do better at idle, but again it barely lasted through the day. It took me a while to figure out the "WiFi always scanning" setting, but even once I got my phone to sleep, it didnt seem to make that much difference (no blue bar in usage manager). I've attached some screenshots from usage manager and wakelock detector, does this all look normal to the experts out there?
Should I just flash back to stock to see if I can get the phone at least making it to 15+ hours with light usage on the completely stock setup? I feel inclined to do this, because it SHOULD work bone stock, right? Or is it a waste of time and the stock rom is so bad I should just load something else?
Finally, if I did want to try going back to completely stock I could just follow the troubleshooting section of this post, is that correct? can I flash the OTA updates in the same manner using ODIN instead of sideloading from an sdcard? http://forum.xda-developers.com/att-galaxy-s5/general/how-to-root-g900aucu2aoa1-4-4-4-2-3-2015-t3021120
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flashed to stock
Just wanted to update for anyone having similar issues. I flashed back to stock using the "downgrade to NCE" file found on this site, then sideloaded NCE to NG3 and NG3 to OA1. That solved my problem and the phone now runs like a dream.

battery is draining twice faster

Hey everyone,
my Note 4's battery (SM-N910F) is draining really fast. I bought 3 new batteries (1 samsung from their site and 2 rav power) and my battery still only holds for like 3 to 4 hours (instead of the whole day as before).
Can you help me figure out a fix?
Thanks !
Android 6.0.1 is running.
Version number MMB29M.N010FFXXU1DQL2.
Baseband N910FXXS1DQA1
3 -4 hours when using it? That is great. However, if standby is affected then you need to see what is running in the background and affecting the battery. Use BetterBatteryStats and or Gsm Battery monitor
raul6 said:
3 -4 hours when using it? That is great. However, if standby is affected then you need to see what is running in the background and affecting the battery. Use BetterBatteryStats and or Gsm Battery monitor
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no, 3-4 hours when almost not using it ! Before, the battery was lasting all my work day. Now at lunch, it's done.
I installed Gsm battery monitor, here's what I get:
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Do a search on android system battery drain and try some of the fixes. Something is running causing the drain. Google or other backup or something constantly syncing etc.
Finally, I did a full factory reset and now the battery is back to normal!

WhatsApp / Facebook on background alot of the time

Hey guys,
I bought OnePlus 6T last week, so far I'm really liking the phone but there is something strange with the battery stats:
I charged the phone yesterday to 100% before going to sleep, then left it out of the charger to see how much it would use, in 9 hours it used 5% (it's okay, but maybe it could be better?), the strange this is, from the dump file from BBS attached, you can see that WhatsApp and Google play services were using sensors all the time, what's is happening with them?
Also, on the process tab, it's showing Telegram on top, what does it mean?
Now, after 30% being used with 2.4 screen hours, I can see these stats on these stats on the battery menu:
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Facebook used 13% with 1:36 hours in use and 13:25 in background
Telegram used 7% with 0 in use and 0 background (I didn't even open it today)
WhatsApp used 2% with 19min active and 4 hours in background
Can anyone help with what might be happening here?
I attached a dump from BBS from the moment I wake up (idle) and from now.
Thanks.
Facebook app is just a rubbish. It's known for draining battery
Yes I know Facebook drains lots of battery, but that does not explain why it's running so much time in the background, I have checked other people phones and they do not experience such thing, this is probably something with my phone
get rid of the facebook app...problem solved, and you will have a happier life..

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