Database Info

Need help on battery life and CPU usage

I have a Samsung Galaxy S7 and the battery was doing fine. A few weeks ago the phone started getting quite slow and the battery life went way down. I had installed a few apps around then, so I removed them and still battery life was bad. I tried restarting the phone and that didn't help. At the time I was running Marshmellow and I was using OSMonitor to watch the system. I was finding that Android OS was taking most of my battery and 30% of the CPU all of the time. Not long after that Nougat became available and I upgraded thinking that might help. It didn't help and OSMonitor no longer worked. I switched to GSam Battery Monitor and used adb to give it the permissions to see all app information. I'm still finding that the Kernel is taking 28% of my battery and Android System is taking 37% of my battery and I can't figure out why. I would rather not need to do a full reset and install all of my apps and settings again, so I'm asking if anyone out there has ideas on things to try and fix this. This is a non-rooted phone running the stock image from Samsung/Verizon.
Thanks for any help.

try activate the Battery Saving option and use it for a day and see if helps

I've had this happen to me before. The phone was getting seriously hot while it was happening too. I decided to do all I can without doing a factory reset (I was on vacation at the time, so no access to something to backup my data).
I cleared the cache of all apps. Then I disabled all of the stock apps I didn't need (like Gear VR). I also shuttered apps running in the background to about a max of 3 apps open at any given time. That stopped the insane heat issue, but Android System was still sucking 30% of the battery. I turned off Always On Display, that got me down to about 25%. A factory reset got the phone down to around 10%, and I never saw the issue again.
Before you do that I would recommend checking out this thread below as there does appear to be a bunch of other possible solutions provided by others.
https://forum.xda-developers.com/s7-edge/help/how-experiencing-android-battery-drain-t3327730/page51

Djuganight said:
try activate the Battery Saving option and use it for a day and see if helps
Click to expand...
Click to collapse
But then my background syncing is turned off too...
I didn't need this before, so wondering why I should need it now.

I had same issues and was able to fix it. See the following thread for details.
https://forum.xda-developers.com/showthread.php?p=71558514

Try this , it helped me a lot .
Download from the XDA forums the Kernel named : "Apollo Kernel" v7
Just flash it , and when you install it , if you dont use your phone for high end games or hard work,that requires high end specs , then you can underclock the cpu/gpu .
It s a battery life saver, plus , your components will be much better in terms of thermals/life

Having bad battery life on Nougat? Check this.

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------​What I have right now out of Doze are "Bluetooth MIDI Service", "Bluetooth Share", the "Clock" app and two other Clock apps.
I am not sure how effective is the method listed below after the last update. Stay tuned.​​
Also I think the current version of Facebook Messenger is draining too much battery.
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------​Hello everyone,
when I bought my Zenfone 3 ZE520KL, I was amazed by it's battery life. I could easily get around 8 hours of SOT in a single charge with moderate usage. My device was running Android Marshmallow 6.0 out of the box, but performance wasn't as good. On Nougat, performance is much better and faster, also I used to get some lags and frozen screen, the capacitive keys also sometimes froze when I was charging my phone, but now I don't get issues like that as often as before. Interface is so much more appealing and I love it.
But what about battery life? I started getting around 5 hours of SOT.. which is still good, but not really close to 8 hours. I thought a lot about these 3 hours that were missing so I decided to start investigating. I wanted to share my findings with you so maybe you would know something that could help.
It's been two weeks since I have been testing out different things. The apps I used to do my research are:
Carat. What I love about this app is the process list. It shows exactly which apps and system processes are running in the background, so I can control them very easily.
Greenify. Thanks to the Carat app, I can see which apps continue running in the background, so I can use Greenify to hibernate them after I'm done using them. (Examples: Youtube, Snapchat etc.). Also I bought the Donation Package, and unlocked the other modes using adb commands (my device is not rooted).
BetterBatteryStats. This app is usually used to detect wakelocks. I limited the Google Calendar App from syncing so it doesn't use too much battery in the background. This app is paid in Google Play but you can get it for free from here.
What I did to get better battery life:
I excluded the services, that were always running in the process list from the Carat App from Doze. Apparently, the new Doze in Nougat gives us permission to optimize more system processes and services than before, which can backfire - Doze starts trying to kill processes that can't be killed, and this results in consuming more battery juice than saving it.
How to enter Doze settings and make the following changes:
Go to "Settings" > Select "Battery" > Tap on the three dots at the upper-right corner > Select "Battery Optimization" > Select "All Apps" > Find and tap on the Apps/Services/Processes I have listed below > Select "Do not optimize". The other apps and services should stay optimized.
The apps, processes and services that I removed from Doze are:
Android Services Library
Android System
ASUS Calling Screen
Bluetooth MIDI Service
Bluetooth Share
Camera
Clock
com.android.smspush
com.asus.keyboard
com.asus.shim
com.qti.qualcomm.datastatusnotification
com.qualcomm.qti.tetherservice
org.codeaurora.bluetooth
org.codeaurora.ims
com.qualcomm.qcrilsgtunnel
ICESound Service
Mobile Manager
MobileManagerService
System UI
Telecom Service
Telephony Service
ZenUI Keyboard
ZenUI Launcher
Some other apps that I'm using: Do It Later, Greenify, Messages, Nova Launcher, Timely, Weather.
Please do a full charge to 100% afterwards and check if the battery still drains as quickly as before. Your feedback will be greatly appreciated.
I am already starting to see improvement in my battery life. I was losing around 2% on Stand By and battery was draining fast when I was using the phone, but now I lost 0% on Stand By overnight and 10% for 1 hour of SOT (before this I was losing 10% for 30 min. of SOT). I am still trying to figure out which services exactly are causing the drain, when they are being optimized. Maybe the services, included in the Android System? (Check them from Settings > Battery > Android System > Included Packages). I deleted Facebook and Twitter apps and started using them from Chrome (almost the same thing, I quickly got used to that). Please check the updates below for more info and share your opinion or advice in the comments so we can all reach a better experience with this amazing smartphone.
Thank you for reading!
Update1: 6h30min SOT with 30% left (917mAh, 35%), but I will have to charge now. I have been messing with Doze a lot, maybe I'll get more clean results later. Progress has been made though, at least with my device.
Update2: Something interesting - my J-Score with the Carat app before and after starting this experiment: http://i.imgur.com/Q8u6HBD.jpg
Update3: There is a battery drain when making voice calls - 226mAh (7%) were lost because of 43 minutes long talk time.
Results were worse after testing with the second list removed, although there wasn't much draining with the screen on: SOT - 5h20min for 70% of battery (752mAh, 20%).
Update4: com.android.phone appears as a wakelock at BBS (Wakeups:8). Also 2h30 SOT for 30% used battery (100-70%~408 mAh). I'm updating the list and trying again.
Please note that my phone is updated to the latest firmware WW_Phone-14.2020.1703.28-20170410.
Update5: com.android.phone is still an active wakelock (Wakeups:14), but SOT is 2h34min for 30% used battery (100-70%~343mAh). At 30% battery left, SOT is almost 6hrs(28%~787mAh), Device Idle is at 10% (291mAh). The MobileManagerService is causing way too many wakelocks and is probably the reason for the high Device Idle battery usage.
Update6: MobileManagerService is no longer showing as a frequent wakelock. com.android.phone (Telephony Service - Wakeups:9) and com.google.android.apps.messaging are the most persistent wakelocks, other than that battery life is amazing at the moment. SOT is 2h45min for 30% used battery (100-70%~366mAh). I also had 27 min of talk time (4%~145mAh). At 30% left, I have 6h33min of SOT (32%~912mAh). Device Idle is again at 10% (292mAh). We are ready for the final test.
Update7: The results are quite interesting. After removing com.qti.qualcomm.telephonyservice from Doze, com.android.phone stopped appearing as a frequent wakelock at first, but now, at 70% it has 16 wakeups. SOT is 2h22min (100-70%~318mAh), so it's not better. I'm going to try a few more changes.
Update 8: I posted it as a reply here.
Update 9: I shouldn't have put Task Manager out of Doze, I get so much better battery life now. The update is ready, check it here.

Good post, thank you for investigating this, please let us know if you find more stuff or what exactly is responsible for it and an easy way of fixing.

1noob said:
Good post, thank you for investigating this, please let us know if you find more stuff or what exactly is responsible for it and an easy way of fixing.
Click to expand...
Click to collapse
Hello! Thank you for your reply. I'm so happy I could help others and myself with this thread, but I also need to know if you are also seeing any difference. Please check here regularly!
Also, I'm guessing that when you put your system processes and services in Doze, you also decrease their performance, which causes battery draining, as they try to run normally and do their work. Doze is trying to prevent them from doing that. This is my conclusion, but only results will show if I'm correct. If you own yourself a Zenfone 3, please feel free to report if you experience any changes using my method.
Thank you and have a nice day!

Hi, thank you for the post. I have a zenfone 3 here and will try your method.

I'm trying it on ze520kl with marschmallow, it seems working fine. :highfive:

Do you remove the first and second list from doze ? or ate testing with only the second list now?
Nice findings btw

pedromms86 said:
Do you remove the first and second list from doze ? or ate testing with only the second list now?
Nice findings btw
Click to expand...
Click to collapse
I have removed everything from both of the lists. It's still early to say but no major battery drain is noticed for now. Thanks!

bibbomio said:
I'm trying it on ze520kl with marschmallow, it seems working fine. :highfive:
Click to expand...
Click to collapse
Awesome! :good:

Thank you so much for this article. Well written as well. I have applied the changes and so far no issues (it has been 6 h is). Will report once I have more history

I remove the apps from doze, and can say it really improve battery (test for one day)
thanks !

@Blackrose110 any news improvements after update3 ?

New update is released via OTA (~500MB).

pedromms86 said:
@Blackrose110 any news improvements after update3 ?
Click to expand...
Click to collapse
Too early to say, also I got a weird wakelock, and lost 2% overnight. I lost the results (100-90%) after a restart. Now I'm going to update my phone and start again.
I had 8% used up on 43 minutes of SOT, and 2% lost on voice calls (100 and something mAh). I went to bed with 92%, I guess the other 2% were lost on that wakelock and the clock wakelock. These 2% were lost on equal intervals.
It's going to take a while, I'm just using my device normally. I don't have time to be on my phone all the time, also the battery is harder to drain now. At this point, I'm just trying to get better results.
Cheers!

pedromms86 said:
@Blackrose110 any news improvements after update3 ?
Click to expand...
Click to collapse
Check again tomorrow!

RobinRo said:
New update is released via OTA (~500MB).
Click to expand...
Click to collapse
Updating...

I don't think it is a good ideea to change Doze settings for system services like com.qualcomm.* or telephony*.
In theory, these services should be compatible with operating system and they should work as designed. I would focus on third-party apps who doesn't work well on Nougat.
Anyway, is just an opinion and i'm looking forward for updates

ci6i said:
I don't think it is a good ideea to change Doze settings for system services like com.qualcomm.* or telephony*.
In theory, these services should be compatible with operating system and they should work as designed. I would focus on third-party apps who doesn't work well on Nougat.
Anyway, is just an opinion and i'm looking forward for updates
Click to expand...
Click to collapse
Hello ci6i, I also agree with you, and that's why I excluded all of them from Doze when I first tried this out. At the moment, I removed only those system services, that run in the background all the time. My goal is to find the least amount of system services and processes, that are causing battery drain when the phone is in use.
I am not saying that you should do exactly what I did. It's best if you try out yourself on your own device what works and what doesn't.
I also have only excluded from Doze apps that I use daily. But everyone is using different apps and it depends only on the developers to update them.
You can download Carat for free from Google Play and check the process list, it's very useful. The app itself doesn't use any battery.
Good luck!

Blackrose110 said:
...
I am not saying that you should do exactly what I did. It's best if you try out yourself on your own device what works and what doesn't.
I also have only excluded from Doze apps that I use daily. But everyone is using different apps and it depends only on the developers to update them.
...
Click to expand...
Click to collapse
I agree with you and i really appreciate your work Yesterday I've installed Carat after i read your first post and today i did new OTA update and cleared cache partition. Let's see how it works in the next few days.

What should I do next, guys? Remove other com.qualcomm/com.android/com.asus services or remove just MobileManagerService from Doze? I'm thinking about the second one, I'm curious to see if ti makes any difference. I think the results from the first test were the best, and the MobileManagerService was out of Doze as far as I remember. Might as well try and see what happens.
It's a bit hard to drain the battery these days, so updates might not be fast. Patience is key!

Yeahh final test!! Looking forward to the result

[TIP]Getting the best out of your phone.

HEATING:
Heating while charging isn't an issue pls. You can let your phone cool down before charging it in a cool place. You can either power it off or put it on Airplane mode while charging. (This will reduce the charging time and also some activities by apps which slow the charging) Heating is normal while charging owing to the Quick Charge x.0 capability of Qualcomm Snapdragon 617 (MSM8952). It will heat up. Heating is reduced in the latest builds, especially while recording video via the camera. This semi-budget oriented processor isn't designed for heavy gaming pls, despite 3GB of DDR3 RAM available to it. If you're a hard core gamer or someone who likes to overclock stuff, this isn't the right phone.
If you feel your phone is heating with normal usage too, consider removing apps which are useless and clear the cache followed by a reboot. See to it that the apps are updated. You can switch to WiFi instead of Mobile Data (keeps my athene cool idk why). If nothing works, consider a factory reset; else shift to a custom ROM if you can and test.
PERFORMANCE:
General phone performance of Nougat has been better than Marshmallow for sure, but for many, 7.0 has had the notification drawer stuttering issue in some cases and Bluetooth being turned on automatically after turning Airplane mode ON. Overall experience is smooth. But many people do not like stock ROM very much, because of the lack of features. AOSP and LineageOS based ROMs are much better that stock in terms of speed. For god's sake don't use the task killer apps or battery savers like CCleaner / CleanMaster/ DU Battery Saver. Apps staying in the memory (RAM) are good for your device until your phone is lagging. Clearing the things from the recents panel will force them to start again from scratch, consuming the CPU and of course the battery.
BATTERY & CHARGING:
Stock N wasn't very good in terms of battery after all in comparison to MM despite the improved doze mode introduced in Nougat. Well this is the case in almost every android OEM that the battery performance went down in transition from one Android version to another. However, the March 1 update is said to fix a bit of battery and security issues. Android has the habit of collecting garbage (but that makes it smart too) and this can be one of the reasons why battery and performance issues occur after an OTA. The best thing after a "dirty/problem causing" update is to do a factory reset. Anyways, it is advised to clear the cache before and after doing an update. For god's sake don't use the task killer apps or battery savers like CCleaner / CleanMaster/ DU Battery Saver. Apps staying in the memory (RAM) are good for your device until your phone is lagging. Clearing the things from the recents panel will force them to start again from scratch, consuming the CPU and of course the battery.
Battery Saving and charging Tips:
Please understand the difference between Screen On time of a complete cycle and the usage time. People start judging the battery from the estimated time left after the first charge itself. A tip is to fully charge the battery after a clean flash and then let it drain till 15%. Do not let the battery drain completely, Li-ion batteries lose their capacity over time and are designed to run between 20-100 percent. Battery life of your phone is completely dependant on your usage. Turning off Auto-Rotation, WiFi, Bluetooth, Sync, Mobile Data, Location Services and scanning (almost everything ) when not needed can give you the best battery life possible. You can consider using Greenify although you should avoid any such thing. Android learns how you use it, no need to comment about the 2 H SOT you're getting after a clean flash. You might also want to uninstall the useless apps and block the wakelocks (which you understand) if possible. Turn off the SIM card if it's in very low network. If nothing is helping you, you might consider doing a factory reset too.
Checkout this amazing thread by @rirozizo and the video by XDA TV.
https://www.youtube.com/watch?v=3Zt2j8lFbJQ
Ghost Touch: Your touchscreen is at fault. Visit the service center please.
Screen Retention: Your display is defective. Turning the phone off for a while and then setting blue light filter at 5% for Black colour or changing the RGB values is a temporary fix. Visit the service center please.
Random Reboots: Try factory resetting your device, see if you installed something wrong and flash latest stock firmware, just in case, you know. Else the service center only can fix the issue if still present.
For not being called a noob:
1. Read XDA and other forums and think before you do anything to your phone.
2. Ask in the community if you have doubts. (Read Rules and XDA University's New User's guide first)
3. Always make backups before flashing new things. (Use TitaniumBackup and TWRP backups)
Check the videos by XDA-TV and Rootjunky ( @Tomsgt )
https://www.youtube.com/watch?v=_rEsgCrvEqY
https://www.youtube.com/watch?v=nyr3FstDKH0&index=1&list=PLgLZvFga2ml4Atl32E4c_ZslfrTJJDUfr
https://www.youtube.com/watch?v=j-i59R51Cys
4. See this video by XDA-TV:
https://www.youtube.com/watch?v=JmvCpR45LKA
5. Stop using useless apps and be patient pls.
Valar Morghulis!

Good thread, I'll add a couple of my tips here.
- ohmergerd, there's thousands of ROMs for the G4! Which ones are the best???? Nearly every single ROM for the G4 subtracting perhaps GZR ROMs and RevivorOS/optimized stock is LineageOS based (Invicta is basically Lineage with MM kernel blobs and faux/OMS integrated). There's basically no performance differences, just feature differences based on the discretion of the dev.
- If heating is STILL an issue for you, disable the 4 big cores. There isn't a significant difference in everyday use- the LITTLE cluster handles the UI and basic apps anyway.
- Haven't noticed notification bar lag since the 7.1.2 builds. If you have lag (depending on your ROM), using blur or transparency helps trick your eyes into seeing no lag. If lag persists, force enable scrolling cache and speed up the animations.
- If you have a custom kernel and your RAM usage isn't an issue, disable KSM, Adaptive Memory Killer, and/or ZRAM and Kernel Adiutor/EXKM. While useful if you let your memory use skyrocket, if you are conservative in your memory use these memory killers just suck up CPU cycles.
- Build prop tweaks/L Speed/HEBF don't work. Completely placebo, except for governor tweaks.
- USB-OTG is great, I recommend getting a dongle if you're a flashaholic. Much easier and quicker to simply plug in your USB to flash instead of plugging in your phone, transferring the ROM, flashing, etc.
- Use a trickle charger, and save that fast charger for emergencies (camping, flights, etc.).
- Disable a bunch of Google's **** in settings- I advise going through Activity controls as Google takes snippets of keyboard input, voice, web history, video history, etc. This adversely affects battery life especially if you have a weak signal, as Google Play Services continuously attempts to push through their telemetry data. This is also why you get 2hrs of SoT after a clean flash.
- On stock-based ROMs (to eliminate lag), boot the ROM once, then reboot to recovery and flash the latest Aroma GApps package with the apps you want. Then, mount /system, and start deleting all apps in /system/app or /system/priv-app that begin with "3c". This effectively removes Motorola updates and telemetry, and also updates your GApps- the stock GApps are very old, and updating them caused Play Store errors and miscellaneous battery sucking services.
- Mr. Shield Protectors suck. Badly cut-out, misaligned, etc.

Hard reset: A term with the common misconception here in the group. Hard reset means nothing in android smartphones. It is only a term for older computers where you manually had to reset the old electrical parts from the charge they held.
Factory reset via the settings is equivalent to the Wipe Data/Factory reset available in the stock recovery.
Also, always sign out from your Google account before doing the wipe, else chances are your device may enable Factory Reset Protection and lock the device.

Normally my phone was using two BIG cores (and the four LITTLE ones). Each core was utilized around 40-60%.
Withing kernel manager I have set the minimum value for the BIG cores to 1 and I have lowered the minimum frequency value for that core. Now the utilization on that core is close to 100%.
Now the phone is cold all the time (except when charging with the Fast Charger) and I have no lag issues whatsoever.

Oh, btw, on some kernels (EX 1.07, Vegito), workqueue power saving is built in which iirc tries to schedule tasks on the fewest cores as possible, so on these kernels which tend to turn off cores and lower frequencies while asleep the wakeup action, especially while dozing, the wakeup action will be met with significant lag/delay.
If you have a delay when turning on your phone with these kernels (or even stock kernels for some ROMs), disable the setting called wq_power_saving.

I have the solution for random reboots. But only for those devices that reboots 4 or 5 times every day. Just open your device and disconnect the battery for 30 minits. Or also you can change the battery (confirmated it works)

negusp said:
Good thread, I'll add a couple of my tips here.
- ohmergerd, there's thousands of ROMs for the G4! Which ones are the best???? Nearly every single ROM for the G4 subtracting perhaps GZR ROMs and RevivorOS/optimized stock is LineageOS based (Invicta is basically Lineage with MM kernel blobs and faux/OMS integrated). There's basically no performance differences, just feature differences based on the discretion of the dev.
- If heating is STILL an issue for you, disable the 4 big cores. There isn't a significant difference in everyday use- the LITTLE cluster handles the UI and basic apps anyway.
- Haven't noticed notification bar lag since the 7.1.2 builds. If you have lag (depending on your ROM), using blur or transparency helps trick your eyes into seeing no lag. If lag persists, force enable scrolling cache and speed up the animations.
- If you have a custom kernel and your RAM usage isn't an issue, disable KSM, Adaptive Memory Killer, and/or ZRAM and Kernel Adiutor/EXKM. While useful if you let your memory use skyrocket, if you are conservative in your memory use these memory killers just suck up CPU cycles.
- Build prop tweaks/L Speed/HEBF don't work. Completely placebo, except for governor tweaks.
- USB-OTG is great, I recommend getting a dongle if you're a flashaholic. Much easier and quicker to simply plug in your USB to flash instead of plugging in your phone, transferring the ROM, flashing, etc.
- Use a trickle charger, and save that fast charger for emergencies (camping, flights, etc.).
- Disable a bunch of Google's **** in settings- I advise going through Activity controls as Google takes snippets of keyboard input, voice, web history, video history, etc. This adversely affects battery life especially if you have a weak signal, as Google Play Services continuously attempts to push through their telemetry data. This is also why you get 2hrs of SoT after a clean flash.
- On stock-based ROMs (to eliminate lag), boot the ROM once, then reboot to recovery and flash the latest Aroma GApps package with the apps you want. Then, mount /system, and start deleting all apps in /system/app or /system/priv-app that begin with "3c". This effectively removes Motorola updates and telemetry, and also updates your GApps- the stock GApps are very old, and updating them caused Play Store errors and miscellaneous battery sucking services.
- Mr. Shield Protectors suck. Badly cut-out, misaligned, etc.
Click to expand...
Click to collapse
Thanks for the tips.
Using Root explorer I deleted the 3c stuff and updated the Gapps via Aroma installer (never knew this Aroma version existed).
Where do I find the Activity controls thing?

bluegrass55 said:
Thanks for the tips.
Using Root explorer I deleted the 3c stuff and updated the Gapps via Aroma installer (never knew this Aroma version existed).
Where do I find the Activity controls thing?
Click to expand...
Click to collapse
It's in settings>Google, first 3 menus iirc.

i just had to unroot, re-lock my boot, and flash the latest firmware because someone has been hacking my phone. I purchased a Samsung phone and been switching the SIM between phones. I wish custom ROMs were more secure, flashing every ROM available, some took longer then others. After seeing that the Samsung KNOX wasnt able to be hacked, i decided to flash your stock N package. They are yet to get in my XT-1644 since earlier after the flash.
Am i stuck on the Stock ROM or is there a way to keep from getting a rooted with unlocked bootloader, hacked?

Any battery saving tips/tricks?

Haven't been getting good battery life on my Note 20 Ultra compared to my Note 9 and it seems to eat up about 10% every hour(heavy user playing music and YouTube videos). I have package disable pro running but greenify doesn't seem to work on the Note 20 ?, which I think helped a lot with battery on my Note 9.
It might be because I did smart switch(I will factory reset and do a fresh install later today) but if it's not, do you guys have any tips to preserver battery life?
I am currently using Optimized Power Mode and put a lot of apps, other than the ones I need notifications for, in Deep Sleep. I also used the app to Mac out the refresh rate to 96hz. You're help is much appreciated ?

gbert15 said:
Haven't been getting good battery life on my Note 20 Ultra compared to my Note 9 and it seems to eat up about 10% every hour(heavy user playing music and YouTube videos). I have package disable pro running but greenify doesn't seem to work on the Note 20 , which I think helped a lot with battery on my Note 9.
It might be because I did smart switch(I will factory reset and do a fresh install later today) but if it's not, do you guys have any tips to preserver battery life?
I am currently using Optimized Power Mode and put a lot of apps, other than the ones I need notifications for, in Deep Sleep. I also used the app to Mac out the refresh rate to 96hz. You're help is much appreciated
Click to expand...
Click to collapse
Apparently it takes a few days for the system to learn your usage and optimize accordingly. But below is a few things i have done that don't effect general performance.
* Put apps into sleep or deep sleep mode if you don't use the much or require notifications from them.
* If Google play Services is causing a drain, go to the app and clear cache.
* Go to location and check out app permissions and turn on off or while in use for what you use etc.
* Go to your accounts and go through what is being synced or not, turn stuff off if you dont require it and if theres any errors being displayed this will always cause a battery drain as its constantly trying to re sync.
Hope this helps

xORJSx said:
Apparently it takes a few days for the system to learn your usage and optimize accordingly. But below is a few things i have done that don't effect general performance.
* Put apps into sleep or deep sleep mode if you don't use the much or require notifications from them.
* If Google play Services is causing a drain, go to the app and clear cache.
* Go to location and check out app permissions and turn on off or while in use for what you use etc.
* Go to your accounts and go through what is being synced or not, turn stuff off if you dont require it and if theres any errors being displayed this will always cause a battery drain as its constantly trying to re sync.
Hope this helps
Click to expand...
Click to collapse
Definitely gonna try these out! Thank you

SNS_SMD and RMNET_DFC wakelocks

Greetings, I have a problem with constant wakelocks on my MI11i phone since the day I bought it. Those wakelocks drain battery by 30% overnight, but also cause increased drain during the day in standby too since they instantly kick in as soon as the phone is locked, overall resulting in poor battery life. Even thou I am not an advanced user and has no need of it, I went so far that I completely factory reset the phone(this was the 2nd time), then reflashed new recovery and new official ROM to see will that sort the issue, then for a good measure I also rooted it with TWRP and Magisk. I tried underclocking the cpu to the lowest but it makes no difference while in standby since obviously that isn't the case. I tried using icebox but there were no processes that had SNS or RMNET in their names, so I just froze some analytics apps. Both wakelocks are gone as soon as I turn on the airplane mode or switch to wifi. Any app that can help me freeze those or edit something in kernel?

I found a rom that fixes the wakelock, listed here https://miuiflash.com/roms/miui-csx/alioth/miui-csx-v13-0-8-0-stable-alioth
But i couldn't find a way to contact the author for more info can i fix the kernel myself