yashsingh1/xdaforums huggingface dataset:
[Xperia Z Q&A, Help & Troubleshooting] Gaz1521:
Hey guys, I've encountered a battery/stamina mode related problem.

Up until about 2 weeks ago, my battery life has been pretty fair with stamina mode on, but then I had to use the navigation on google maps and since then I've had issues. I've had an issue before were I've used my phone for something in regards to location, caused my phone to eat battery, but once I had made sure all location/gps settings where off, it went back to normal after a day or two.

This time round however, after turning everything back off, it still had worse battery life. I tried looking at what was eating my battery, but couldn't really find a culprit, until a few days ago. It seems that when I have wifi or mobile data on, it's not being temporarily turned off upon screen time out, as soon as I turn the screen back on, the wifi/data is still on instead of the brief 3 - 5 second period were it has to turn back on.

I have an unlimited data plan so I leave that on constantly, and I have wifi set to connect when in range of saved networks BUT it is also set to never stay on during screen timeout. This is how I have had it set up since day one, and like I said I've never had a problem before other than one incident that was easily sorted. I've tried a master reset, but the problem persists.

I have tried google for answers, but not really found any similar situations, which put me off my original theory that it might be a bug in the recent firmware update I had about a week or so ago. Frankly, I'm stumped, so if anyone can help I'll be very grateful.

Thanks a lot guys, and apologies if it's in the wrong section and kind of on the large size haha.

Gaz
[Xperia Z Q&A, Help & Troubleshooting] Hellscythe:
yes
[Xperia Z Q&A, Help & Troubleshooting] robincoops:
Battery

1. Poor battery life

a) High usage <4 hours watching a movie

b) Medium usage <12 hours( txt email whats app internet use bit of music )

c) Low usage < 1 day - 2 days

probably among the worst phones on the market for battery life and poor loud speakers when making phones call.

also sony really slow with android updates.

thanks all dev for rom currently using beanstalk 4.4 running smoothly.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
ca 1h 30min Screen on.

KitKat 4.4 fresh install.
[Xperia Z Q&A, Help & Troubleshooting] winnstorm:
I were user of the xperia z phone almost 6 months and some days ago I swapped it for a Galaxy s4 I have to say that the battery difference is very notorious I can use the s4 for more than one day with the same usage of the xperia z that only last for 12-14hs as much:what:

Enviado desde mi GT-I9500 usando Tapatalk 2
[Xperia Z Q&A, Help & Troubleshooting] sneghi:
Was very fond of getting the Z. Went to a Sony retail outlet and checked out the phone. I really loved the design/model but the instant heat on the phone put me off. Came back home and checked out some reviews all I could see was ppl complaining about the heating/sound issues. Went to a different store and checked again for the Z and again I could still feel the heat. Also asked the store guy for an S3 and played on both of them for sometime, the heat on the Z went crazy. Finally I got settled with an S4. Not a sammy fan boy just my opinion.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
I'm using Beanstalk +meow kernel and Dolphin Browser. No heat issues at all!

Using Chrome and the phone is getting hot as hell!
[Xperia Z Q&A, Help & Troubleshooting] Persianboy_i:
hi guys. i have bought z about two months ago, in the first month of usage i think its battery life was good but after the last week my phone is draining the battery so fast, even in standby. for tracking of what is draining my battery i tried many ways. first i was on .67 rom, i did a factory reset and test the battery and still drainig so much so i thought it might be related to my new Adata 32GB microsd UHS-I, so i removed the card and test the battery life and it was the same then i thought it might be related to Signal Power, so i removed the simCard And still no success, then after all of these i flashed 4.3 US rom and nothing is changed, the battery draining is so fast for example: in 12 am it was fully charged then i unpluged the charger and leaved it till morning in the morning it was 85%, its very strange that the phone still using 6% percent of battery life per hour even in deep sleep. even it seems that the phone charges so slowly,

now i am thinking it might be related to battery and my phone may came out with a faulty battery, any one has any guidance?
[Xperia Z Q&A, Help & Troubleshooting] sea2605:
See my thread about optimizing battery life:

http://xdaforums.com/showthread.php?t=2382712

Happy new year everyone!
[Xperia Z Q&A, Help & Troubleshooting] amielDH:
Hi guys. Im planning to get this phone tomorrow. I have an Xperia ZR at the moment but I find the Z more attractive and I need the larger screen. My only concern is I've read a lot of complaints about the battery life. Is the battery life really that bad, even after the 4.2.2 or 4.3 update? Any inputs would really be helpful. Thanks!
[Xperia Z Q&A, Help & Troubleshooting] :
Can I take it a notch further?

Hi there! Happy New year everyone!

I've been using my phone for about 7 months now. Been pretty satisfied more or less. Sometimes the battery dies out on me too quick and sometimes it surprises me positively. More often than not though, it just about gets me through the day. I've posted the screenshots of an average day usage.

Is this the best I can expect from the phone? Can I do something to improve the the screen on time? What steps should I take from now on so as to improve the longevity of the battery since I'm not planning to buy another for at least a year!

Regards!
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Nah, you can get over 7h there is a thread in the general forum iirc.

BTW here is mine ^^ Beanstalk 4.4.2

You see that drop? Ca. 1hour of CastleTD gaming! That sure dropped fast.

And the 2nd picture is pure Stand by!

WiFi always connected. Ca. 15mins screen on ^^
[Xperia Z Q&A, Help & Troubleshooting] FakeSmile:
For me beanstalk 4.4.2 is the rom with the worst battery life.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
i have no idea what is wrong... but something definitly IS wrong!

Here you see a picture of a stock rom with stock kernel, Google sync, facebook 2x Active exchange push sync.

and then here we have the same ROM with doomkernel FULLY wiped, dalvik, cache everything! NO Accounts set, nothing! Pure Stock untouched!

I can see that mmc1_detect comes from Walkman app searching my phone... but WHY is there still that suspend_backoff wakelock?

there is NO Reason for that to happen -.-

reading here it has to be an App but which pre installed app might that be ? -.- anyone else having this Problem.
[Xperia Z Q&A, Help & Troubleshooting] masterinc:
My battery suddenly drop from 63% to 3%..

I think need to change the battery....
[Xperia Z Q&A, Help & Troubleshooting] DjBodi:
My phone: Sony Xperia Z

Many games and Internet use is 2 days .. if you do not use it intensively, you will get in 3-4 days ..

(Stock Android 4.3)
[Xperia Z Q&A, Help & Troubleshooting] Hider141:
Have you tried saving the event log like "T.J. Bender" wrote in that thread? You might find the app or process responsible for the wakelocks.
[Xperia Z Q&A, Help & Troubleshooting] masterinc:
I think I found out why my battery suddenly drop from i.e 63% to 9%.

I flash a lot of diff rom. From stock, to existenz and to CM. And of course I flash different kernel too.

I found out that, when I flash / change diff kernel, battery level will be different and not consistent.

For example, on stock ROM, when my battery level is 10%, I flash Doomlord kernel, and charge the phone to 100% and used it until 90%. When my phone got problem, I flash CM11 ROM and the battery will show 90%. The i decide to flash stock rom when the battery is at 80% and used default kernel... the battery level will show 10% on stock rom.

Another example. On stock rom and still on stock kernel, the battery level is at 10%. I flash new doomlord kernel and charge to 100%. Use it for a while and change kernel to XzK. The battery level is now at 90%. Phone problem and back to stock kernel, the battery level will show 10%.

Is anyone facing similar issues or it just me? or my battery is no longer reliable?

p/s: i hope you all understand my example.
[Xperia Z Q&A, Help & Troubleshooting] venky716:
It's normal.

Just calibrate ur battery.

Charge till 100 let discharge slowly till it turns off, charge till 100 again while it's off.

Calibrated.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Btw, i made a thread about governors & stuff, also including some Benchmarks for 1h Screen On time with light Browsing with different governors.

http://xdaforums.com/showthread.php?p=49617504#post49617504
[Xperia Z Q&A, Help & Troubleshooting] masterinc:
Changed to new battery, all my problem solved....
[Xperia Z Q&A, Help & Troubleshooting] gerickjohn:
Same, If you find an answer, let me know. :D
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
suspend_backoff wakelock comes from bugged Drivers from sony, it's something with the battery and Kernel related!

After i flashed XzKernel v19 i didn't have it anymore!

btw, anyone else here having MMC1_detect Wakelocks ?

If yes, could you prove my two statements?

1. ONLY happens when you're connected to WiFI (well, also esle, but on WiFi its 15-20% of Standby Time, else is 1-3%)

2. Only happens on Sony Stock Rom. Kernel may be modified, but only happens on Sony Phones AFAIK.
[Xperia Z Q&A, Help & Troubleshooting] tetzu:
strangely my zL is suffer from the same problem when i finished listening music wth poweramp a2dp, and what more strange is, THAT SUSPEND BACKOFF THINGY doesnt appear when i listening music with walkman a2dp,, can someone explain this? google play music a2dp is caused suspend backoff too anyway
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
+1
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Suspend_backoff is a WakeLock! Listening to music keeps your phone awake! It does NOT sleep. Therefore no other wakelocks can happen!
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Thats what its supposed to look like!

Vanir AOSP 4.4.2 !

Exact same usage pattern than the others with 15% mmc1_detect wakelocks!
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
I might need to take that back!

And now comes the strange part!

These 11hours 22mins i was NOT at home, (compared to the Screenshot before, 5h no Wakelock. WiFi always connected.) i was at school, yes there is also WiFi. But not everywhere and it might have disconected a few times.

Lets See how it behaves now back home!
[Xperia Z Q&A, Help & Troubleshooting] stanekskc:
Hi.

I tried to find a solution to problem of battery drain I first i had Wi-fi problem. Only way to fix it is to change in option to ' Always Connect'. But still i saw how the % of battery is going down. So i disabled Debugging . Root phone by using 'Kingo Android ROOT' for all phone locked and unlocked. I install 'system panel lite', it's free in market and check what apps is working back ground. and start to freezing them. I had freez every thing what was using Wi-fi in back ground like ' MIrrow' 'Wi-fi only when it's near' and at last WakeLock. I'm testing it from 12h and i lose only 10 % of (1h screen on + wi-fi) + (11h wi-fi+screen off). I thing the problem of Stock rom is the apps from sony that are using Wi-fi. My solution is to freez them or uninstall. And instal only the most using, rest of them are trash.

It's only my solution. Work for me. Maybe it will help.

Sorry for English - Just start learning
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
This one is From this Evening.

So mmc1_detect definitly is not happening anymore if i'm at home!

So lets See what happens tomorrow when i turn Wifi off during the day.

[MENTION=2869666]stanekskc[/MENTION] the question is WHICH APP From Sony is causing them! I dont want to freeze all. I just want to freeze THAT one responsible.
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
My only guess would be "devices" since there's history of them being responsible for some wakeups.. but seems like 4.3 is kinda buggy..

look at my situation. Fixed all wakelocks and still get drain... :)

http://xdaforums.com/showthread.php?p=49838654

and a response i got from kernel dev...

"

With 4.3 Sony included automatic calibration of the battery. In v20 I reverted back to 4.3 after fixing the wakelock. So just give it two or three recharge cycles and see if it improves. Also, 4.3 is a really poor version for battery. Almost all devices with 4.3 have had unexplained battery drains."

We can hope sony fixes this in new rom/kernel
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
No screen on time, max like 10-20 secs. Wifi and Data off.

From 100% to 94% in 8½ hours. Is this normal? It barely exits deep sleep, so shouldn't it be better?
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
looks kinda good IMHO.

Data deactivated the whole time ?
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
Ah, this is good? I don't have much experience with the phone, I just came from a phone that delivered much bettre battery life (atleast thats how I feel).

Yep, data was deactivated. Only thing running was the actually cell network which was at perfect signal, no signal loss or so.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Lets See how many Screenshots i can attach :)

All? That's great.

Using 4.4.2 Vanir AOSP!

Greenify Facebook, what's app, Google Play Services, Google Service Framework.

Got around 5emails (2accounts push.) During that time.

Had it at 0.5%/hour that time.

Sadly what's app is broken atm.
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
[MENTION=3056043]Haldi4803[/MENTION], that's nice but does it beat my night of airplane mode ;)?
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
i wanted to ask "Did you make a call the whole night?" but i guess that wouldn't work in airplane mode xD

How did you get your phone that bugged ?

P.S do you ever sleep more than 6h ? or are you already up since 4 am ? ^^
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
I've no idea what happened. It seems to be the phone but it's in airplane mode. But then also the classic msm_hsic_host wakelock - which was something I thought was related to the 3g modem - which was off! It makes no sense. Maybe it's the kernel I use (XzInnere) but it's really not that modified so I don't see why it would be causing these wakelocks.

... and yeah, my bedtimes has been pretty late, the last couple of weeks :p
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Here on 3G! no Wifi the whole time.

Getting this com.Android.phone wakelock -.-
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
Maybe using Intelli3G or Toggle2G can help? Like 2g when screen off... I don't know.. All this **** I never saw on good old gingerbread.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
i'm using intellig3g right now. screenshots coming up in a few hours :D

P.S Sleep is for the weak!
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
I Think its working!

Looking forward to the practical test tomorrow!
[Xperia Z Q&A, Help & Troubleshooting] masterinc:
Hi,

Is it advisable to use this cable Dual USB A to Micro B to charge my phone using the USB car charger?

I travel a lot and using waze most of the time. I have the 2.1a and 1.0a usb output...I always used the 2.1a output...but then, the battery still drain faster compared to charging...
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
Had another case of RILJ keeping my phone awake the entire night.... great stuff
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
Uninstall xposed and that inteli3g and see what then happens ?

But 4.3 really has some weird behavior . Here's mine example . After each refresh of battery usage mine andorid OS usage goes down :eek:

.
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
It's just.. it came out of no where. I havent really been installing new xposed stuff and Toggle2G (which I tried to disable, no change) was working fine not long ago. Now I get this darned "rilj" **** which is so god damn vague that I can't believe it. If just there was a way to tell what was asking the "phone" app to keep the phone awake, I could do something about it, maybe.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
So here is a real life Stat.

Intelli3G, greenified FB Whatsapp GSF GPS

Around 50minutes of Music which is the power manager services Wakelock shown there.

View attachment 2557386View attachment 2557387View attachment 2557392

Still to much com.android.phone data.stall alarms -.- this does NOT happen when I'm on WiFi.
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
Your attachments dont work here :/... also.. Do you have any experience with Toggle2G? Is Intelli3G superior?
[Xperia Z Q&A, Help & Troubleshooting] gerickjohn:
MMC1 is under but doesn't really cost that much, its there with or without WiFi and yes, I'm on Sony Stock Rom.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Dont have Toggle2g, seems outdated, maybe,
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
Well it changes to 2g when screen off, so what the hey :b? When I tested Intelli3G it didnt seem to work as good.

Btw, that is v19, yes?
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Nope, AS stated few pages back these Screenshots are all Vanir AOSP 4.4.2 with aosp kernel!

But that thing overheats extremely fast! 50-55°C SoC temp for low activity. So not much screen on Time. But Standby is awesome!

Yeah intelli3G only switches to 2G after X minutes screen off (3 in my case) and takes quite some time to comeback online (depending on signal strength)

But it works fine
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
1h30 screen on with direct sun shine, so I think it was 100% brightness.

Drops 40% and I lost about 4% in the rest time.
[Xperia Z Q&A, Help & Troubleshooting] qjl912:
need to keep the charge in the region of 10% to 90%. This prolongs the battery life even more so.:)
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Ohh. Vanir aosp does have connection manager.

Currently in London. Either no 2g here or not on pre paid three Sim card. At least intelli3g always deactivates data.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Oh... GravityBox KK (Xposed module) does have the same!
[Xperia Z Q&A, Help & Troubleshooting] sea2605:
I'm using that since a week or so and its working fine. since gravitybox implemented this feature I deinstalled intelli3G, because I already use gravitybox for other tweaks (therefore: one less app/service/module to take care of)

______________________________________

My thread about optimizing battery life:

http://xdaforums.com/showthread.php?t=2382712
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
No 101 results yet ¿ :)
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Still in Aosp 4.4 vanir, 3g network only lot of Google maps and Wifi Thetering!

View attachment 2573535
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Fails for two attachements
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
First time after flashing had again high android os usage and msic wakelocks. Since then done a clean install and restoring apps one by one to see which one is bugged.. Now running pretty basic setup (whatsapp, facebook, tapatalk, gravitybox, greenify donation) , and so far so good. 1h 5mins of SOT
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
Well if you had the msic wakelock, then its there, I guess? Even if you did a wipe and it wasnt, doesnt mean it wont appear suddenly...

I.e. sony didnt fix **** :P
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Oh come on, you didn't really expect Sony to fix that. Did you?
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
I'm starting to be more of a thinking that it's just the case of different wakelock loging that 4.3 brought us. Cause after all, i managed to get 4.45h SOT in 1d 12h with 1 year old battery. I don't find that to bad, but I'll continue doing some test and monitor behavior..
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
I dont even know whats sup with a firmware update like this other than it potentially wrecks all my customization with unknown gains.
[Xperia Z Q&A, Help & Troubleshooting] salanos:
Has anyone else had the weird occurance of your phone regaining like 30% of battery after a restart? My XPERIA A (ZR, fairly similar to the Z in most respects) does that - its apparent battery life drops over several weeks of running, and last night after restarting the phone when it dipped under 20% gave me an extra 30%!
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Yes, this is a known Bug, happens sometimes.
[Xperia Z Q&A, Help & Troubleshooting] Haldi4803:
Goddamit sony! WTF are you doing ?

Stock 101 Xposed Greenified.

Okay.... 1.3% Per Hour is not that bad...

But still! WHY is there 2h Awake time for 5min screen on ?

50 mins (8.6%) MMC1_Detect just because WiFi is on -.-

and WTF is this Alarm ?

Well tomorrow i'm gonna do a real test, not just sitting at home with WiFi
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
Cool, the only things I was hoping for to be fixed, is not. I don't even think it matters much where you are, it's clearly the same crap as we have/had with 569...

I'm glad there's people like you who can show me that I don't need to update :D
[Xperia Z Q&A, Help & Troubleshooting] stanglish:
Sorry all, I normally hate those that do this but with this being such a huge thread what is the consensus in terms of best Android version for battery life? I'm about to get a brand spanking Xperia Z but I'll hold off updating it if 4.3 is terrible for example. Fingers crossed 4.4 (as rumored) will yield us all decent battery performance!
[Xperia Z Q&A, Help & Troubleshooting] MafiaManV:
Well it's definitely worse than 4.2.2, as you can see, someone has higher drainage than other etc.. ,but let's say it's decent.

There's no reason not to try 4.3, you can always easily revert to 4.2.2

---------- Post added at 01:10 AM ---------- Previous post was at 12:20 AM ----------

So here's my full report. Running existenz 6, with all my apps (100+). Really mixed usage, with 1h of listening to music (therefore 1h of power wakelock). Not that bad despite all these wakelocka
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
Damn, 2 days, that's pretty good!
[Xperia Z Q&A, Help & Troubleshooting] alnikki25k:
Tbh, this is probably the best and most consistent battery life I have got. Can't wait to see what Sony's changed in the kernel.

I know it's not a long test-period, but I was watching House of Cards throughout and that itself is a video decoding time of about 3 hrs and 30 mins, the time when my screen was "medium" according to BBS.
[Xperia Z Q&A, Help & Troubleshooting] Kocane:
Is it the new kernel that is in charge of making the battery life better?
[Xperia Z Q&A, Help & Troubleshooting] :
Who knows, it is them crazy Aussies after all ;)
[Xperia Z Q&A, Help & Troubleshooting] nightwing369:
http://www.pcadvisor.co.uk/videos/3428481/sony-xperia-z-review/

" Sony Xperia Z: Battery life

In use the Xperia Z not only lasted a day but went a good way through a second. We went 31 hours and still had 20 percent of the battery remaining. We achieved this with moderate usage and the Stamina Mode switched on. "
[Xperia Z Q&A, Help & Troubleshooting] marcgear:
That cheered me up lol.
[Xperia Z Q&A, Help & Troubleshooting] DakiX:
5h 27min Display on :good:
[Xperia Z Q&A, Help & Troubleshooting] LordManhattan:
Heavy usage? Moderate? Gaming? Surfing? Looking at kitties in the gallery?
[Xperia Z Q&A, Help & Troubleshooting] decentgi:
beautiful battery

saying that the battery is beautiful isnt in the literal sense he is just saying that it did a good job our lingo isnt as colourful as some but its to the point and honest.
[Xperia Z Q&A, Help & Troubleshooting] dean0505:
the battery life is pretty good...
[Xperia Z Q&A, Help & Troubleshooting] Dannyada1988:
In terms of the battery, at present, the best one may be the iPhone according the authority test.In general, the smartphone need to charge every day.
[Xperia Z Q&A, Help & Troubleshooting] :
That doesn't really help anyone without screen shots and what you did to in that time :)