yashsingh1/xdaforums huggingface dataset:
[Xperia Z Q&A, Help & Troubleshooting] samxool:
but i don't understand.

my problem isn't when the screen is off.

my problem is when the screen is on.
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
because if it is stuck on indexing because of a faulty file or something this doesn't help. Also the soft reset is basically the same thing as pulling the battery so that doesn't help for this kind of problem. Basically the media server is busy indexing or stuck on indexing or stuck on stuck trying to open something it caches it last operation and just go's on after soft reset. I had something similar once with the download manager on my old phone even flashing CM again and formatting cache partition didn't work in the end the solution was simpler than that and that was removing the cache and date from the download manager.
[Xperia Z Q&A, Help & Troubleshooting] beni8978:
Try to turn off the location while the screen is on.Surely you will get more juice.

Sent from my C6603
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
try a day with out watching a movie and see if that makes a difference. In the end it is not only the screen that is using battery. If I browse/download battery go's down much quicker than when I'm reading a PDF or chatting/email. Also I think it depends on encoding and quality of the movie.The GSM arena test is done with SD video, 50% brightness and airplane mode on. So if you watch a HD movie with 3G or LTE on and maybe some other programs running in the background it will die quicker.

I'm now on 85% 5 1/2 hours on battery. 45 minutes screen on.

brightness lowest setting with auto brightness.

Only 3G on all other radios are switched of.

approximately 20 minutes ebook reading, 15 minutes browsing (3G), 10 minuts chating (3G)

Stamina + battery Guru switched on
[Xperia Z Q&A, Help & Troubleshooting] beni8978:
Absolutely right.

Sent from my C6603
[Xperia Z Q&A, Help & Troubleshooting] jayman1986:
How many days have you had phone? Coz that does matter, especially if you have a lot of media. It takes at least 4-5 days to fully build up cache. Which will help reduce battery consumption during USE. Rom needs time to settle down.

Edit: sorry just re-read your post. You haven't actually had 3 hours of battery life though have you? Your basing on assumption that you will be watching videos for 3 hours continuously and nothing else? Question is what is your ACTUAL USAGE behaviour.
[Xperia Z Q&A, Help & Troubleshooting] TechGuru_x10:
With wireless ON, you will get not more than 3 hours screen time. I do not have mobile internet so I am using Wi-Fi. Getting the same result with 100 % brightness.
[Xperia Z Q&A, Help & Troubleshooting] samxool:
I'VE had phone 5 days now.

what do you mean by cache?
[Xperia Z Q&A, Help & Troubleshooting] subcode:
Media server problems here too. The first time i insert my microSD from my previous phone (Note II), i noticed an overheat that i thought that my memory card was malfunctioning. My card had 15GB of music.

When i format the card suddenly the problem disappeared. But when i try to copy 5GB of music then the media server process started again to consume battery although not as much as the first time.

Without any files my device has great battery life. This problem must be addressed ASAP!
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
This is normal it is indexing you card......,
[Xperia Z Q&A, Help & Troubleshooting] Rashkae:
It creates and index of the files and is analyzing the music files for the SenseMe music playlists. Once it's done it will sort itself out.
[Xperia Z Q&A, Help & Troubleshooting] AntonyStark:
When I got my New SD card and moved files On to it I had the phone on charge and there were sharp zigzags on the graph where the % actually went DOWN whilst On charge! But once it is done it is done, unless you have some Dodgy files On there or something is stopping it from completing.
[Xperia Z Q&A, Help & Troubleshooting] LordManhattan:
Media server/mediascanner is an indexing service which scans your internal memory/SD card for files. It's triggered every time you add or remove a file. This is a bug in Android and not the Z. I have the same problem with my Note and it's the same with every Android device out there.

- A reboot will trigger it again, and it'll run in the background for 15-20 minutes.

- Having folders with a lot of small files will only make it worse (big games etc.)

There are ways to stop the scanner, but it's more annoying than the scanner itself, to be honest. You can install Rescan Media from the Play Store and disable it. You'll have to enable it every single time you do something that requires the memory to be scanned.
[Xperia Z Q&A, Help & Troubleshooting] irishrally:
3 hours screen on time is pretty standard for a moderate to heavy user. This should be in Q&A.
[Xperia Z Q&A, Help & Troubleshooting] alnikki25k:
I haven't had any problems with the battery. Rough calculation gave me a battery drain of 1% every 3-4 minutes of a 720p video. So by that math, you should have a drain of about 10% for a half an hour video. Which seems to be the case with you(~15%). Trust me, the ROM will take time to settle and it will drain for a day or two. Try turning off Auto Brightness. Also, make sure you actually set only necessary apps in the STAMINA mode. I have had a number notifications reporting some XYZ app is preventing the phone from entering STAMINA mode. And 5 hours of Screen On time should be above average if not great.
[Xperia Z Q&A, Help & Troubleshooting] samxool:
well, i do have auto brightness off.

i haven't white-listed a single app in stamina mode, as i'm happy for only phone calls and texts to get through when i'm not using it.

well, i love the rest of the phone, so we shall have to see how it goes on as the battery gets more use.

Though i now plan on buying a 12,000 mAmh external battery which i will carry around with me, to ensure i can get a long lifetime out of my phone when i'm out and about (by this i mean on trains, coaches, etc, not just walking down the street as i know this battery pack will be as big as the phone itself!)

i think this is the only way i will get acceptable battery life.

maybe its just me, but I personally, i wish they stopped making the phones so damn thin and put a proper battery in them!
[Xperia Z Q&A, Help & Troubleshooting] alnikki25k:
I understand your need. But the general view people hold is that their phones should be sleek and neat. Take the RAZR Maxx HD for example. It packs a 3300 mAh battery. But it's fat(comparatively). And how many did Motorola sell? Not many. So people always judge a book by its cover and that is what companies exploit. That said, Android is notorious for poor power management. No doubt, it'll get better. But for the moment, it's not great.
[Xperia Z Q&A, Help & Troubleshooting] Cpasjuste:
Well its not you, the battery life is just horrible, you can almost see the percentage going away in live.

All tough I'm coming from a galaxy note so its not really comparable but its still a shock :)
[Xperia Z Q&A, Help & Troubleshooting] gm007:
Are you kidding?

21minutes screen on and still 100%
[Xperia Z Q&A, Help & Troubleshooting] tjackbjorn:
Sv: how am i supposed to get more than 3hours on screen time with this phone?

This is how you get over three hours on screen ;)

http://www.imgur.com/b0rygrB.png

http://www.imgur.com/KRDxhyz.png
[Xperia Z Q&A, Help & Troubleshooting] scoopdreams:
Just to chime in, you need to understand what's going on in your Android system and you can hit the mark on battery life. Got back from a long day at work and the Xperia Z lasted with me even through heavy usage.

4hrs 40min of screen time (web surfing, mail, etc, etc, little bit of YouTube)

Close to an hour of voice calls

Stamina mode off

Bluetooth on for about two hours connected to car hands free kit

View attachment 1797513

It takes a few days for your battery to normalise, and also your usage patterns to subside to a lesser intensity.

And, there's 4.2.2 over the horizon, that reportedly adds about 20 to 25 percent extra battery life.

------------------------------------------

Sony Xperia Z C6603 Purple | KA Revolution 2.2
[Xperia Z Q&A, Help & Troubleshooting] ojstagg93:
Excuse my lack of knowledge but how would software improve battery life?

Thanks!
[Xperia Z Q&A, Help & Troubleshooting] Rashkae:
By optimizing processes to use less time and resources, better hardware usage instead of more power-draining software emulation, etc etc
[Xperia Z Q&A, Help & Troubleshooting] ojstagg93:
Ahhh Thankyou! I read something today that 4.2 might come to Europe by the end of the month
[Xperia Z Q&A, Help & Troubleshooting] Hellscythe:
i can easily achieve 3 hours screen on, i could probably achieve more screen on if i used it more.

i usually have about 3 hours 30 minutes screen on, but 2 hours of that is me trying to drain the battery for cycles.

the other day i did standard browsing and achieved 4 hours 20 minutes,

wifi on, data off, stamina OFF

I am honestly finding the battery life very good and can last me a day of heavy usage,

and two days of normal usage..

Although the phone does get hot....thats a different story ;3
[Xperia Z Q&A, Help & Troubleshooting] ady_seray:
I'm getting 4 hours screen on time constantly, and I have stamina mode off
[Xperia Z Q&A, Help & Troubleshooting] samxool:
well, update, my battery is down to 11%, screen on time 3hours 2 minutes.

damn it!

i really don't know how to get between 4 and 5 hours like everyone else is.

screen is taking up 25% of battery, which is expected.

Android system is taking up 18% which seems very high.

and then mediaserver is in 3rd place taking up 13%.

is it normal for android system to take up so much battery??

i primarily use my phone to watch videos and browse the internet a little bit.
[Xperia Z Q&A, Help & Troubleshooting] scoopdreams:
Watching videos suck juice faster than a porn actress suck... Oh wait, THOSE KIND OF VIDEOS? that explains... :)

Download Better Battery Stats and see what is erm, causing you to lose your juice so fast.

------------------------------------------

Sony Xperia Z C6603 Purple | KA Revolution 2.2
[Xperia Z Q&A, Help & Troubleshooting] jayman1986:
Lord Manhattan posted some useful information a few pages back, do you have a lot media on your phone? If so try " rescan media" app from play store and just press it once in a while.
[Xperia Z Q&A, Help & Troubleshooting] samxool:
i have about 7 videos, a couple of photos and zero music.

so i would argue no, i don't have a lot of media.

forgive my ignorance, what does rescan media do exactly (if you could word it in noob language please! :))

thanks,
[Xperia Z Q&A, Help & Troubleshooting] jayman1986:
The mediasync seems to eat up the battery, which is because it is constantly performing a scan for your media.

What rescan media app does is just scans once and basically stops it and voila, no more scanning.

Everytime you add new media or delete, you need to just go to app drawer and click rescan media, otherwise mediasync would kick in again.

It's worth a try and takes about 5 seconds to download from play store.
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
normally the scanning of new folders containing media only happens when you re boot the phone. So if you would download a zip file containing photos or movies and unzip the folder the photos/movies will not show in Album/Movie app. Only happens after a reboot. If you would put the photos is a previously indexed folder they will show up. The app just starts the media indexing service without a reboot.

Personally I never managed to get 4 or more hours as well. I'm starting to suspect the 3G usages depending on where I'm the connection is slow or fast (like any other phone) when I'm at my work and using the device during a break it uses allot of battery. Although all the bars are full the connection is very slow. When commuting back home I use my device longer but it uses less battery, insistently the connection is much faster.
[Xperia Z Q&A, Help & Troubleshooting] maverick1103:
I'm with you here @Samxool I cannot get over 2/3 hrs of screen on either!

Though I haven't been able to fairly test mine yet as I have had no WiFi at home for nearly 3 weeks and my 3g coverage is pretty poor in my home so I'm constantly trying to get a signal so I can use the internet! Thus meaning my battery is draining pretty quickly as its always scanning for signal! I'm hoping when Sky sort themselves out and they install fibre in my home it will be a different story, as coming from a Note 2 is a massive shock!

Though I have noticed something very strange with LightFlow app which I use for customising my LED. Yesterday my LED flashed to say I had a notification and the screen kinda lit up, but wasn't on! I could see the back light on and it was just a black screen, I pressed the power button and the screen went off and I had to press it again so I could unlock it to use it! This has happened quite a lot of times now, so I've installed betterbatterystats today to see if LightFlow is one of the causes of my poor battery life!

Anyone else use LightFlow and had problems like mine??
[Xperia Z Q&A, Help & Troubleshooting] samxool:
I WOULD add that for the first 2 days of having this phone, i had no phone reception. and it was caning my battery.

it definitely improved once i had phone signal.

but still struggling to get much over 3 hours.

I'm not convinced i need this media scanner as i don't need reboot the phone, and i'm not putting much media on my phone either.

Does anyone know how to stop facebook push notifications?

obviously its stopped by stamina mode, but i also don't really want it push notifications when the screen is on.

I'll happily go check my facebook account whenever, and only then do i want to see new notifications.

thanks,
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
if it's the media scanner you should see it in the battery stats. Mine doesn't have a problem with the media scanner I think for me it has to do with the G3 connection. Maybe I will test this when i'm at home for a whole day.
[Xperia Z Q&A, Help & Troubleshooting] gm007:
I don't have light flow but i had the same problem like you.yesterday my phone was on charge and suddenly the screen lit up without turning it on,only black screen with led on.

I turned the phone on and there was no notifications or anything.

Today i flashed another firmware to check if the problem persist.
[Xperia Z Q&A, Help & Troubleshooting] maverick1103:
Well that gives me some hope then!

I used to have the media problem when I had an S3, it did fix its self in the end! I use Spotify quite a bit and the media server is on for the same time as Spotify but then stops straight after, so it sounds like yours is just constantly running which is why everyone has been suggesting to download a manual sync app so it should force the phone to scan and then stop....should!
[Xperia Z Q&A, Help & Troubleshooting] samxool:
would it appear as media scanner?

i have android system and media server in 2nd and thrid place respectively on list of apps using battery (screen being in 1st place).

after that, its things like wifi and cell standby

i'm confused whats the difference between android system and android OS.

on my XZ, android system is in 2nd place using 18%

android OS has used 4%.

i'm concerned android system is using more battery than it should be.

only i don't know what it is actually doing.
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
it is the media server, this is used for indexing and playing media. So if you are watching movies it is normal to have the media server near the top. If you have the media server near the top while you didn't watch any movies/photos listened to music you might have an indexing problem. If so some times it helps to format the sd in the phone if you use an sd.

I think the difference is that Android OS is the UI layer/OS interactions and system is more low level stuff and services, but I'm not sure.

I have some strange things as well Phone used 14% while I didn't make a single call... Maybe I should invest in betterbatterystats. Funny first time I'm so obsessive about the battery while I get better results than my previous phones :)
[Xperia Z Q&A, Help & Troubleshooting] samxool:
SORRY, just to clarify, are you saying Android system is media server?

as in if i am watching videos, then it is normal for android system to be near the top of the battery hogs?

edit - checked my battery usage again, screen 27%

android system 17%

mediaserver 15%

so android system is something different to mediaserver???????
[Xperia Z Q&A, Help & Troubleshooting] samxool:
just another update.

finally drained the battery to zero.

got on screen time of 3hrs 39mins.

its now on its third full charge.

i think i got 3 hours 10 minutes before it died for its 2nd full charge, so maybe i'm already seeing some slight improvements in battery life?
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
Yes they are not the same thing.

Media server is for media playing and indexing

Android system server is used for lots of stuff , wallpaper, notifications etc , see http://www.slideshare.net/opersys/understanding-the-android-system-server

---------- Post added at 01:08 PM ---------- Previous post was at 01:07 PM ----------

mine became better after more than a week usages >20% left vs 50% left when arriving home
[Xperia Z Q&A, Help & Troubleshooting] samxool:
so does it strike you as not right that android system is using so much battery?
[Xperia Z Q&A, Help & Troubleshooting] Ame123:
Battery life is great for me butt still android system and media server using a large ammount :(View attachment 1799178
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
well it really depends on how you user your phone, maybe you have a live wallpaper or a widget running etc. Most of the time I have 7~10% use of the android system. Also it is really difficult to make anything of those numbers. Because it is percentages used of the battery so it depends on how you use your phone mine 7-10% could be the same as your 17% for instance. If you look at the Use details of Android System you can see all services that are included in the Android System package you can use that information to disable some of those, maybe you can find the culprit that way. I'm sorry I can't give you better answer than this

Total time on battery 4h 50m

Battery 79%

top service:

Screen 1h

Phone 10% (didn't use the phone at all, how strange)

Media server 10%

Android OS 7%

Android System 7%

My Android System:

CPU total 4m 16s

CPU foreground 41s

Keep awake2m 3s

Data send / received 152 bytes
[Xperia Z Q&A, Help & Troubleshooting] jayman1986:
Understand the problems, I used to be a flash junkie on my arc s. And never had good battery until I let a Rom settle for a week or so.

I know it's far fetched but maybe mediaserver is doing something at the moment and does need more time to settle. It literally could be the one thing that's causing a placebo effect on the while system, so say it stops tomorrow, it may have a significant improvement.

Be patient.

Only other thing could be as well is with my experience with Sony phones, usually they release a battery hungry phone but they quickly improve it with updates. Maybe they are working on it in the rumored upcoming jelly bean update.

Just Maybe........

On another note my phone arrives tomorrow, so I'll have something to moan about tomorrow. ;)
[Xperia Z Q&A, Help & Troubleshooting] stefanve:
I which you happy moanings to morrow
[Xperia Z Q&A, Help & Troubleshooting] samxool:
thanks.

i will be patient for now!

let me know how you find your battery life.
[Xperia Z Q&A, Help & Troubleshooting] Supersaiyan.IV:
These guys solved the problem.
[Xperia Z Q&A, Help & Troubleshooting] LordManhattan:
A fool proof solution to the battery problem is:

- Step 1: Power off

There's no step 2.
[Xperia Z Q&A, Help & Troubleshooting] Warren.D:
Im having problems with stamina mode. For example, its switched off it says I have 6hrs standby, I turn it on and it still says I have 6hrs. Its only happened recently? Anyone else with same problem?
[Xperia Z Q&A, Help & Troubleshooting] cordonbleu:
Same here. Happens not all the time, as sometimes the estimated standby time is displayed correct. But most times it says just 15 hours after I pulled my phone of the charger (at 100%). After activating stamina it still says 15 hours, but actually I get 4 hours of screen time. So my battery should be ok. The estimated standby time is just a number. I think it's a well known bug by now.
[Xperia Z Q&A, Help & Troubleshooting] schaggo:
AW: how am i supposed to get more than 3hours on screen time with this phone?

Lots of FUD and crap by clueless peeps in this thread. I'll hope to put up a quite extinsive answer to make the FUD and crap stop.

xda is becoming unbearable :(
[Xperia Z Q&A, Help & Troubleshooting] iDroid8:
Quite a few options can be disabled to improve battery life - if they sound familiar please be aware I've had only an LG cookie and an iTouch 4G before! The screen vibrating when touched, lowering the brightness to the bottom helps also - I've found that even at the max settings it's not really too much of a difference and the screen is still very easily usable in direct sunlight too. Also, I've turned off BE - I'm think it's cool but not really useful enough to justify the extra battery sucking. As well as that, using a task killer to remove unnecessary things and always having my multitasking window clear means I can get 1 and a half days of usage, with maybe 3 hours of video (watched 3 HD game of thrones episodes), played Temple Run 2 for hour, browsing image heavy websites and intermittent Facebooking and texting throughout, maybe 4 hours. That was what I got from 100% to 12%, roughly. Next time I'll try getting a screencap.
[Xperia Z Q&A, Help & Troubleshooting] parapaul:
Just gloating really - I'm thrilled with the battery life on my Z.

My old HTC Desire S would be down to 10-15% by the end of a normal day's use. If I worked a night shift I'd have to charge it in the afternoon to make sure it would get me through the night.

With this baby I haven't been below 50% at the end of a day yet! I'm working a night shift now, phone has been off charge for 20 hours and it's at 45%.

Stamina mode OFF :) I just don't need it!
[Xperia Z Q&A, Help & Troubleshooting] Retxud:
AW: how am i supposed to get more than 3hours on screen time with this phone?

Can't complain about the battery either. Received my Z yesterday and it showed about 80% charge right off the box. Got 4:30h screen on time till it went below 10%.
[Xperia Z Q&A, Help & Troubleshooting] jayman1986:
Hey samxcool,

Just out of interest what browser do you use? On another thread a user was saying his switching to dolphin browser has significantly improved his battery life and phone temperature. I know for a fact that chrome uses more resources.

Might be worth trying dolphin and if you're not rooted, then go to app setting and disabling chrome as well.
[Nexus 4 Q&A, Help & Troubleshooting] gee2012:
I just read an article about the upcoming S4 and i noticed in a screenshot it had a Linux 3.4.5 kernel on android 4.2.1. Is this a better kernel than the 3.4.0 we use on stock 4.2.2 and doe anyone know what the changes are?
[Nexus 4 Q&A, Help & Troubleshooting] 75markus:
harsh uses 3.4.34 :p

you can have a look here : https://www.kernel.org/
[Android Q&A, Help & Troubleshooting] coni27:
how to root lenovo a60?

SuperOneClick just stock at step 7 and do not end the rooting.

while

A60 tools doesn't work too?
[General Questions and Answers] bill212:
As you see I am a new user, and need 10 posts to post in the Dev. threads, i am curious if we could have (if there isn't one that i just haven't found) a thread just for new users to comment back and forth to get up their posts??

Thanks

HTC DNA
[General Questions and Answers] devwithzachary:
No.

This is not the point of the 10 post requirement. You are to post 10 useful posts I.e help people in the Q&A sections etc.

Any thread designed just so users can bump up their post count will be deleted.
[General Questions and Answers] bill212:
Oh. Well, I apoligize for the suggestion.