[Q] "system_server" High CPU Usage and Battery Drain - Verizon Galaxy Note 3 Q&A, Help & Troubleshooting

Hello! I recently started having big problems with my battery life. I have a Verizon galaxy note 3, with safestrap and Hyperdrive ROM installed. A few days ago, my battery started to drain much quicker than normal. I looked at the battery info, and saw that the android system was using the most battery by far; even more than the screen. I then saw that my CPU usage never dropped below 70% and usually hovered around 90%. Next, I went to developer settings and looked at the CPU processes. I saw that "system_server" was using up most of the CPU. This persists through a reboot, and drains battery life incredibly quickly, about 15% per 20 minutes. I cleared the cache and dalvic cache, and this had no effect on the problem. Does anyone have any suggestions or experience? Thanks.

Related

Regarding all these battery issues...

Like most of my fellow XDAers, I've been struggling with battery management issues. What apps to install, CPU hogs and all that jazz.
However, while I've been very pleased with the battery life I was getting from my U8800, I saw several guys complaining of horrible battery performance. I thought that they were just 'doing it wrong'...
I now wonder...
Since November I started noticing strange battery issues. Very fast draining, misleading battery readouts... I wiped my device, flashed it with pretty much all roms (custom and official) available but my battery kept screwing me. And its been worse as time gone by! I now hardly get 8 hours with at most 1 hour of usage.
I'm now posting this after calibrating my battery 4 times the day before and the first time I used our today my battery life went from 100% to 82% in less than 5 minutes! CPU spy reports 85% of deep sleep. Better battery stats has hardly anything logged. I already ordered a new battery but if this keeps going on...
Thoughts?
Sent from my U8800 using xda premium
Why did you calibrate 4 times? How did you calibrate it?
Charge it to full, calibrate battery using app/recovery/deleting batterystats.bin, leave it to totally discharge, fully charge. It is not calibrated until you go through a couple of charge/discharge cycles.

Samsung Galaxy S4 Battery Drain Fast

Hello,
I got the S4 (I9500) since 6 month and the battery is great. it stands for approximately 2 days with decent usage.
recently i got my fiancee the (I9505) but the problem is the battery drain incredibly fast.
She charge it 100% and after 6 hours sleeping in the morning the battery will be 60% with 0 usage.
although i did her mobile setting exact to my mobile setting. and even we tried to make it less but still the same result.
I don't know why this happening although she did the latest update.
Disable Google sync, location, Greenify apps and use BetterBatteryStats to check what's using the battery maybe wakelocks

mmc0_detect drain

Hi guys merry Christmas,
I haven't rooted my phone or anything but for 2 weeks now I have that mmc0_detect wakelock.
I'm losing over 10% overnight with the airplane mod on.
When I check the battery stats android system is at 51% and android os at 15%.
I've downloaded better battery stats but since I'm not rooted I can only see kernel wakelocks.
Cpu stats shows that my phone still goes to deep sleep.
I cleared caches and yet it's still here.
I'm not sure how to fix the problem.
Did anyone had an idea?
I found on an Italian website that it can be caused by a faulty sdcard.
But since it's impossible to put one in, the problem remains
I have 20% battery drain overnight (8 hours). I just got used to it lol.
Sent from my LG-D801 using Tapatalk
Yeah but that's not normal. Have you tried better battery stats?

[Q] S4 Battery Drain Caused By Apps

I recently purchased a new Samsung Galaxy S4 (9505 version) to replace my HTC One X as the battery life was awful. I was shocked that the S4 actually had a much worse battery life than my old HTC One X. After a factory reset on the S4 and everything turned off (GPS, Wifi, Bluetooth, 3/4G, Account Sync), the battery would only last 12 hour on standby without any usage.
I eventually chose to install a custom rom, and went with this: http://forum.xda-developers.com/showthread.php?t=2544474
I found the battery life MASSIVELY improved with this rom. I went from getting 12 hours on standby with the stock rom, to 48 hours of light usage with the custom rom. However, after I installed all my apps, and I only have about 10, the battery drain came back. None of the apps I use are active background processes, and I even installed Greenify to Hibernate any running apps. I have WiFi/GPS/Bluetooth/Sync turned off. I don't understand why I am getting 48 hours of battery without my apps, and only 12 hours of battery with my apps installed even though none are running. According to the battery stats, it is "Phone Idle" which is taking all the battery, none of the apps are even listed on there.
Any ideas why this is?
Could be a app that have installed. My s4 on stock with light use could go by 3 days. Charged this morning and have now 83% with call and text a bit of Internet
Sent from my GT-I9505 using xda app-developers app
Check out greenify on the play store. Should help with the battery issues
Sent from my GT-I9505 using XDA Premium 4 mobile app
symondo12 said:
Check out greenify on the play store. Should help with the battery issues
Sent from my GT-I9505 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Learn to read. Op has already mentioned that he's using greenify.
Questions and help issues go in Q&A and Help section
Thread moved
Thanks
FNSM
Android4Andy said:
I recently purchased a new Samsung Galaxy S4 (9505 version) to replace my HTC One X as the battery life was awful. I was shocked that the S4 actually had a much worse battery life than my old HTC One X. After a factory reset on the S4 and everything turned off (GPS, Wifi, Bluetooth, 3/4G, Account Sync), the battery would only last 12 hour on standby without any usage.
I eventually chose to install a custom rom, and went with this: http://forum.xda-developers.com/showthread.php?t=2544474
I found the battery life MASSIVELY improved with this rom. I went from getting 12 hours on standby with the stock rom, to 48 hours of light usage with the custom rom. However, after I installed all my apps, and I only have about 10, the battery drain came back. None of the apps I use are active background processes, and I even installed Greenify to Hibernate any running apps. I have WiFi/GPS/Bluetooth/Sync turned off. I don't understand why I am getting 48 hours of battery without my apps, and only 12 hours of battery with my apps installed even though none are running. According to the battery stats, it is "Phone Idle" which is taking all the battery, none of the apps are even listed on there.
Any ideas why this is?
Click to expand...
Click to collapse
This is because of batterystats.bin file. While flashing custom rom, be sure you battery is 100%. Use advanced option in CWM to remove batterystats.bin. Or you can manually remove this file using Root explorer data/system/batterystats.bin after flashing the rom. Use Easy battery calibration from google play. You should be at 100% battery before using this app. DO as it say. Then after calibrating, without charging discharge your battery to 0% until it switched off itself and cannot boot(Note: It is not good for long-term battery life) Then charge your phone to 100% in off mode. Boot it and again charge it to 100%. Now it should help with your battery life
Android4Andy said:
I recently purchased a new Samsung Galaxy S4 (9505 version) to replace my HTC One X as the battery life was awful. I was shocked that the S4 actually had a much worse battery life than my old HTC One X. After a factory reset on the S4 and everything turned off (GPS, Wifi, Bluetooth, 3/4G, Account Sync), the battery would only last 12 hour on standby without any usage.
I eventually chose to install a custom rom, and went with this: http://forum.xda-developers.com/showthread.php?t=2544474
I found the battery life MASSIVELY improved with this rom. I went from getting 12 hours on standby with the stock rom, to 48 hours of light usage with the custom rom. However, after I installed all my apps, and I only have about 10, the battery drain came back. None of the apps I use are active background processes, and I even installed Greenify to Hibernate any running apps. I have WiFi/GPS/Bluetooth/Sync turned off. I don't understand why I am getting 48 hours of battery without my apps, and only 12 hours of battery with my apps installed even though none are running. According to the battery stats, it is "Phone Idle" which is taking all the battery, none of the apps are even listed on there.
Any ideas why this is?
Click to expand...
Click to collapse
it can be your battery aswell if your batteries serial starts with BD exchange it asap you may also encounter other issues like mentioned in this thread http://forum.xda-developers.com/showthread.php?t=2570608
i face a odd problem with my s4 above 30% of batery life is very good but when batrry goes to below 30% it drain very fast i use diffrent stock n custom roms same result any one have solution plz help

Poor batter life

I changed from Note 3 to s 6 edge plus recently
The battery drops 5% per hour overnight when not in use. If I go to bed with less than 40% battery at night I am sure to wake up with my phone switched off in the morning.
When in use with screen on, the battery drips one percent every two minutes. This is the worst battery life I have ever seen in a phone. I was a long loyal customer of samsung and this is my last samsung phone ever.
Extremely disappointed
Please post your battery stats ? so we can have a better understanding of your problem. I suggest you install 'Doze' which should stop unnecessary apps from connecting to the internet and causing your phone to awake from deep sleep.
Dear Akbar 11
Heres the battery stats....is it normal?
I had the same issue, and as far as I managed to find out, it is a bug in Samsung's kernel. Flashing Arter97 kernel solved the issue for, but do post battery stats from SmartManager. If it says 'Android' or 'Android OS', then you have the same problem many of us do.
I don't think it's a kernel problem. My android OS is very low 4%. Like zoolok said post your battery stats from settings, battery, battery usage
I have the same problem. Battery was great before I flash custom rom. After going back to stock I have big battery draining. I must stay on custom rom. With Audax rom and Skyhigh kernel i have great battery life.
You have either messed up something big or you have an app in the background that is eating up your battery like no tomorrow.
And the reason i say that is because i recently got this battery life on my Galaxy S6 edge+.
And this was taken 2 days ago.
Here i use the CRISSCROSS ROM, AudaxPro Kernel, Greeinify and Samsung's own 'Appoptimizing' feature (same as Doze in Android 6.0).
So my battery life is pretty awesome.
i have problem whit battery lose 25% when i sleep
This is a usual day with s6 edge plus
Any help?
jonynoname said:
Any help?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=1179809
i have this problem battery ... if u fixed it tell me how?
Well I was expecting Google Play Services to be eating your battery (which is quite common) but it looks like your Andriod OS is eating the most battery. I would uninstall Facebook and use the web version it always helps with the ram and battery furthermore, turn off location if you are not using it and check accounts which are being synced. These are the only tips I can give you as I have never seen Android OS drain so much battery.
Since a few days Google Play Store is eating up my battery: I go to sleep with 100% batt and wake up with 50%, if I check batt stats on top I have play store at 45%, with 5h active a d 2h of CPU.
Follows Android system at 5%.
Going crazy why...
jonynoname said:
This is a usual day with s6 edge plus
Click to expand...
Click to collapse
You've charged your phone 4 times during that day. I can't see what's the interesting part here.

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