Database Users

[Q] Battery drain/idle/standby?

Right, no matter what, I'm getting battery drain in stand by. No sync, Google now disabled, no mail, no location reporting/history etc. and yet I'm getting weird battery readings. In the pic below you can see, I'll let it idle for a couple of hours and the battery will drain. Then I'll use the n10 and the levels will spike. BBS shows that the n10 is awake for about 4 hours but the partial wakelock and kernel wakelock nothing untoward. I'm reluctant to root as I dont want to void my warranty but is any one facing similar issues?

yets said:
I'm reluctant to root as I dont want to void my warranty but is any one facing similar issues?
Click to expand...
Click to collapse
You can unroot and relock your device. Rooting should not be a warrenty issue.
See: " [NEXUS 10 TOOLKIT V1.3.0] Drivers, Backup, Unlock, Root, Flash, Mods + MUCH MORE"
http://forum.xda-developers.com/showthread.php?t=2001868&highlight=unroot
Features mentioned among many: "* Unlock/Re-Lock your Bootloader"

You will not lose warranty just by rooting the tablet. Nexus devices are pretty much made to be unlocked and Google provides the tools themselves to do the unlocking. I have heard of other people get warranty stuff done even while their tablet was rooted. This is because warranty is for hardware defects, which are not caused by root. If you have software problems then yes, those are to do with rooting. But normally you can fix software issues simply by finding a better ROM that has more bugfixes.
Also, that is some really terrible battery life. My tablet loses 1% every 7-9 days while idle. CM10.1 ROM from CraigGomez (November build) with KTManta kernel.

EniGmA1987 said:
You will not lose warranty just by rooting the tablet. Nexus devices are pretty much made to be unlocked and Google provides the tools themselves to do the unlocking. I have heard of other people get warranty stuff done even while their tablet was rooted. This is because warranty is for hardware defects, which are not caused by root. If you have software problems then yes, those are to do with rooting. But normally you can fix software issues simply by finding a better ROM that has more bugfixes.
Also, that is some really terrible battery life. My tablet loses 1% every 7-9 days while idle. CM10.1 ROM from CraigGomez (November build) with KTManta kernel.
Click to expand...
Click to collapse
Is it worth getting in touch with Google? I've had it since just after xmas? I'm about to factory reset it for the second time this week.

Why do you need to factory reset it so often?
I would root it, install a custom kernel, and run better battery stats to try and see what exactly is causing such a huge idle drain.

EniGmA1987 said:
Why do you need to factory reset it so often?
I would root it, install a custom kernel, and run better battery stats to try and see what exactly is causing such a huge idle drain.
Click to expand...
Click to collapse
I'd rather not factory restore it, this is my second time doing it. I'm starting from the beginning like it's a fresh install, just using the Google apps only to see if there are issues there and then adding more until I'm comfortable.
I want to root the tablet only as a last resort as I'm attempting to see if it is an app or it is the battery. I'd rather not brick it or void warranty only to find out it is the battery and then be unable to get a replacement.
There must be somebody that has similar problems?

So, factory reset, this is after 24 hours; This is not kosher. Stock apps. Only thing syncing if you can call it that was Google now. No syncing or anything. Purely from stock apps with updates. Stock battery graph says that it's not awake but stats say it's awake for 19 hours.This doesn't even come close to advertised idle/stand by time. Surely I should return it? I was adamant that I wouldn't complain but I didn't pay so much money for it to come out with this as stock performance.

That is massive usage from Android OS. Something in there is causing a wakelock, which means it is probably a software problem. If you were rooted and had better battery stats installed then it would tell you exactly what the wakelock was from. The built in Android battery info just gives it a generic "Android OS". It looks to me like that sudden sharper downhill slope is the point which the wakelock started. Although that is a bit steep drain before that point too. The point before the sharper decline section looks closer to a non-deep sleeping device stuck at its lowest frequency, but it had to have been sleeping if the device says it was only awake for 14 hours. Still, that 14 hours is a wakelock. Probably from the kernel. Cant say what it is exactly unless you have a better app installed
The Google Services thing is probably Google Now sucking up battery. It tends to do that.
You can either continue to diagnose this problem from the software/firmware or you can just send it back if you want.

EniGmA1987 said:
That is massive usage from Android OS. Something in there is causing a wakelock, which means it is probably a software problem. If you were rooted and had better battery stats installed then it would tell you exactly what the wakelock was from. The built in Android battery info just gives it a generic "Android OS". It looks to me like that sudden sharper downhill slope is the point which the wakelock started. Although that is a bit steep drain before that point too. The point before the sharper decline section looks closer to a non-deep sleeping device stuck at its lowest frequency, but it had to have been sleeping if the device says it was only awake for 14 hours. Still, that 14 hours is a wakelock. Probably from the kernel. Cant say what it is exactly unless you have a better app installed
The Google Services thing is probably Google Now sucking up battery. It tends to do that.
You can either continue to diagnose this problem from the software/firmware or you can just send it back if you want.
Click to expand...
Click to collapse
Thanks. To be fair I think if purchasing such an item, you shouldn't have to become a developer/hacker to study such an issue. Haha! I've used Google now when I first got the tablet and not understanding what it was had it enabled and get there was no battery drain to such an extent.
Fair play to Google, they've agreed to send me out a new one. It reached a point where I couldn't enjoy using the tablet and everything was a test to see what could be causing the issue.
I won't bad mouth Google, as I understand that things do become faulty and these items are complex enough. On another note I called up the RMA team in American (I googled the wrong number) and the two ladies were more than helpful. I don't know how anyone has problems with them. Maybe it was my British accent that did it!

So, I've got a replacement and so far it is not displaying the same issues. It got me thinking about when my original problem started and I think it started when it was updated to 4.2.2. This model comes stock 4.2.1 and it's prompting me to update. Should I bother? Was I just unlucky? Is there a specific way to ensure that the update is a clean update?

yets said:
... This model comes stock 4.2.1 and it's prompting me to update. Should I bother? ...
Click to expand...
Click to collapse
Upgrade to 4.2.2 as it's more stable, especially with the Chrome browser but there are additional bug fixes that address overall stability. A rule of thumb is to install new apps one at a time so you can judge if it causes instability.
You can also install, free from the playstore, "Bootlog Uptime" which tracks crashes and sometimes provides crash related information from the Android logs. It is very handy when you are trying to determine the cause of a force close, freezing or general odd behaviour.

3DSammy said:
Upgrade to 4.2.2 as it's more stable, especially with the Chrome browser but there are additional bug fixes that address overall stability. A rule of thumb is to install new apps one at a time so you can judge if it causes instability.
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Click to collapse
Yeah, I kind of did that when I factory reset it, I just loaded up the stock apps, desynced everything, logged out of everything that wouldn't be used, disabled Google Now and location settings, rebooted and it was still iffy. Before I sent it back I left it for a day and the battery stats were going up and down like a roller coaster. Could it of been a faulty battery? I would like to update but I'm so wary of the problem coming back.
You can also install, free from the playstore, "Bootlog Uptime" which tracks crashes and sometimes provides crash related information from the Android logs. It is very handy when you are trying to determine the cause of a force close, freezing or general odd behaviour.

You may have been unlucky. I have had great battery on all 4.2.2 some ROMs/kernels make a difference.
Sent from my Nexus 10 using XDA Premium HD app

So, after a few days my new Nexus 10 started displaying exactly the same issues as before and I had just about ruled everything out. I used BBS again and looked at the stats, with PowerManagerService being the main culprit but the numbers in Partial wake locks just didn't match. There were very little wakelocks but something was still draining. I looked at the CPU and for most of the CPU was running at 200hz in deep sleep. I just couldn't figure it out and looked at the Running apps and there was only a few but one remained constant throughout all my tests and that was the Settings app. I took a punt and stopped it and cleared it from recent apps. Lo and Behold, the drain has disappeared and the battery doesn't drop at all in idle.
Excuse my noobiness, I didn't know that Android treated Settings as a separate app? On my Samsung S3, this isn't the case, once you leave settings it closes it and suspends it causing no drain.

200MHz in deep sleep doesnt make sense. Cause deep sleep is different than a MHz value. If you are mostly on 200MHz then that means something on the tablet is not letting you sleep properly.

EniGmA1987 said:
200MHz in deep sleep doesnt make sense. Cause deep sleep is different than a MHz value. If you are mostly on 200MHz then that means something on the tablet is not letting you sleep properly.
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Click to collapse
Sorry, didn't make myself clear. BBS was saying that tablet was running at 200mhz preventing it from deep sleep and that thing causing it was having the System Settings app not closing. Hope that makes sense and helps people in the future.

Well that is certainly an interesting find. If you restart the tablet and dont open settings does the tablet sleep fine?

Yes, if you restart it and avoid going into settings, it sleeps happily only waking sync if you have any. It has been idling for about 10 hours without dropping.
I've attached a picture and if you compare to the one I posted at the start of the thread you can see a clear difference. There was a point where I forgot to close Settings and you can see the drain (middle of the graph).

Somehow I don't think this is normal. It dropped almost 30% at home while I was at work. Google now is disabled but groove IP running. No apps that should be sucking battery, but its mostly the android OS. Any thoughts?
Sent from my Nexus 10 using xda app-developers app

Probably the exact same thing as the guy above me. Doesnt look like you are deep sleeping one bit.

l2_hsic wakeups - finally getting rid of it

i posted this in the Note section since it had a big thread going about this wakeup annoyance called l2_hsic, but as i am using a S2 i should post this here as well (you may remove my posts there if you think 1 is enough, i have no permission to do that yet), its a wall of text so im just gonna quote it:
i too had alot of battery drain without actaully using the phone much, was reaching aorund 2 weeks on stock 4.0.3 but the performance wasnt all that, so i installed Supernexus & DorimanX (extreme_battery), great performance but the battery wasnt really what i expected, barely a week with low usage, tried lots of things while i searched a ton of topics about l2_hsic, using gsm-only with FD disabled, turned off play store notifications in the store itself and market updates in TB, WiFi is only on when needed, data usage is disabled, so is gps since i dont use it, baseband/ril is matching, and disabled stuff in TB/gemini/LBE which i dont use, battery got a tiny bit better but far from the 2 weeks i was reaching with stock (had alot of stuff/bloatware frozen though), i was even thinking about flashing stock again but that was gonna be the last option, performance on custom roms was far better
so it got me thinking, saw alot of l2_hsic wakeups with no appearant reason to why or what was triggering those while i had just under 1%/h drain with all that stuff off, then i remembered the last time i opened the play store before flashing Supernexus & dorimanx it didnt work, probably froze too much in TB but didnt want to get to the bottom of it since i was gonna flash a new rom & kernel anyway
so a couple days back i decided to freeze google play store/services and market feedback agent in TB and block them as wel in gemini (had a hunch they could be the culprit triggering all these wakeups since some autorun lines automatically re-enabled themself after turning them off in gemini, one even was called WAKE_UP lol), denied all access in LBE and then used the phone as i normally would (occasional WiFi, couple calls a day and thats it)
rebooted the phone a couple times the last couple days to test if it wasnt a 1-time-wonder but things stuck and im glad to say im now at 0.2%/h of battery drain in deep sleep, up to a max of 0.5%/h when in use, down from around 1%/h in deep sleep, so it will probably last a bit longer than the stock rom/kernel would have before, great success!
before i froze the store/services/agent i had around 1500 wake counts from l2_hsic on a couple of hours while the phone was in deep sleep, now im at a couple wake counts on almost a day while actually using the phone like i usually do
now, in case i need to go in the store i just have to enable the stuff again in TB/gemini/LBE, little effort imo for alot more battery life
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Click to collapse
in case youre wondering if my post was full of of crap when i said disabling the store doubled my battery life:
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notice the l2_hsic wakecounts are now 16 on a week, where i had a couple thousand during a few hours of deep sleep before i disabled the store/services/agent, this is the stock battery with Supernexus + DorimanX (extreme_battery) on 2G, wi-fi wasnt on this week, and i only make like a couple short calls a day, same as ive always done, yet the store woke my phone up so much i barely reached a week with a full battery before disabling it
Click to expand...
Click to collapse
TLDR: in a nutshell, after trying all possible solutions to get rid of the thousands of l2_hsic wakeups (in deep sleep that was), it was actually the google play store/services(/agent) that caused it, disabled it, and i have more than doubled my battery life
obviously most people use their phone alot more than me, i make a couple calls a day, rarely turn on wifi and thats it, someone using the store on a daily basis is probably not gonna disable it and reenable it over and over, just wanted to point out how much the store actually drains your phone without wifi/data in deep sleep on a 2G network

Molock said:
i posted this in the Note section since it had a big thread going about this wakeup annoyance called l2_hsic, but as i am using a S2 i should post this here as well (you may remove my posts there if you think 1 is enough, i have no permission to do that yet), its a wall of text so im just gonna quote it:
TLDR: in a nutshell, after trying all possible solutions to get rid of the thousands of l2_hsic wakeups (in deep sleep that was), it was actually the google play store/services(/agent) that caused it, disabled it, and i have more than doubled my battery life
obviously most people use their phone alot more than me, i make a couple calls a day, rarely turn on wifi and thats it, someone using the store on a daily basis is probably not gonna disable it and reenable it over and over, just wanted to point out how much the store actually drains your phone without wifi/data in deep sleep on a 2G network
Click to expand...
Click to collapse
It's a pity that gmail/youtube wouldn't work at all after disabling google play services, google play store and market feedback agent.
The data/wifi signal that would usually turn blue stays grayed out. I'll be trying enabling just play services

sk1887 said:
It's a pity that gmail/youtube wouldn't work at all after disabling google play services, google play store and market feedback agent.
The data/wifi signal that would usually turn blue stays grayed out. I'll be trying enabling just play services
Click to expand...
Click to collapse
Interesting, it would be good to see this bug fixed but Google apps remain connected, especially Gmail

and after a couple months the l2_hsic evil is back for no appearant reason, i hit up TB one day with half a battery and it couldnt find the pro key again, so i closed it and thought i'd ignore it, next day i turn the phone on again and my battey is near empty, wtf? enabled google play stuff again, updated my apps including TB, pro key problems solved, disabled the google play stuff again, no luck, l2_hsic is back in full force, disabled all the google apps, no luck again either, but i noticed umts_ipc0 was in there too with just under the amount of l_hsic wakeups, which has something to do with the usb, so i started looking further and it seems a fix for the l2_hsic wakeup bug has already been found, even though its on another device:
http://forum.xda-developers.com/showthread.php?p=41338478
only problem now is to have the kernel modders take a look in their kernel and see if that bug is present and if so, if they can fix it?

Molock said:
and after a couple months the l2_hsic evil is back for no appearant reason, i hit up TB one day with half a battery and it couldnt find the pro key again, so i closed it and thought i'd ignore it, next day i turn the phone on again and my battey is near empty, wtf? enabled google play stuff again, updated my apps including TB, pro key problems solved, disabled the google play stuff again, no luck, l2_hsic is back in full force, disabled all the google apps, no luck again either, but i noticed umts_ipc0 was in there too with just under the amount of l_hsic wakeups, which has something to do with the usb, so i started looking further and it seems a fix for the l2_hsic wakeup bug has already been found, even though its on another device:
http://forum.xda-developers.com/showthread.php?p=41338478
only problem now is to have the kernel modders take a look in their kernel and see if that bug is present and if so, if they can fix it?
Click to expand...
Click to collapse
Use non stock battery? Salutes for 7 days for 35% remaining even standby on 2G..:what:
Sent from my GT-I9100 using xda app-developers app

using stock battery, the better ones havent been available in my country for as long as i can remember, would have bought one if they were
shame i cant get that battery life back from my OP, it was 35% used instead of remaining after 7 days with the l2_hsic going mental again now im lucky to even hit 7 days with a full battery

[Q] Android OS high battery use, no apparent wake locks

All of a sudden, my battery life went from awesome to crap like it does from time to time after something gets updated. At first the culprit was Google Play Services so I started hacking away services and receivers using 3C Toolbox which made the problem worse. So I backed up all my user apps that I use, wiped, and re-installed PA 6/20 build with the latest pico GApps. Google Play services had a good wakelock on the system so I disabled the SystemUpdateActiveReceiver and SystemUpdateSecretReceiver with AutoRunManager (SystemUpdateReceiver was already disabled). That solved the Google Play services wakelock but now I am left with Android OS crushing my battery, but no listed wake locks. CPU Spy reports a few seconds of deep sleep, if any. Here is some info from Battery and WLD. These were taken after I charged 100% before bed, and had most of my user apps frozen with Root App Delete, wifi, data, and location off.

jst07 said:
All of a sudden, my battery life went from awesome to crap like it does from time to time after something gets updated. At first the culprit was Google Play Services so I started hacking away services and receivers using 3C Toolbox which made the problem worse. So I backed up all my user apps that I use, wiped, and re-installed PA 6/20 build with the latest pico GApps. Google Play services had a good wakelock on the system so I disabled the SystemUpdateActiveReceiver and SystemUpdateSecretReceiver with AutoRunManager (SystemUpdateReceiver was already disabled). That solved the Google Play services wakelock but now I am left with Android OS crushing my battery, but no listed wake locks. CPU Spy reports a few seconds of deep sleep, if any. Here is some info from Battery and WLD. These were taken after I charged 100% before bed, and had most of my user apps frozen with Root App Delete, wifi, data, and location off.
Click to expand...
Click to collapse
Just bought a G2 today, and have been using it for some hours but i have the same problem as you.. will have to look for a solution, or maybe try a return..

Ev0luti0n_ said:
Just bought a G2 today, and have been using it for some hours but i have the same problem as you.. will have to look for a solution, or maybe try a return..
Click to expand...
Click to collapse
See or it's maybe related to google play services, click on it and see if there are maybe any related things. If you are going to return your phone for this reason then I don't get you cause this is just a awesome phone. Try to maybe do a factory reset if nothing works.

Ev0luti0n_ said:
Just bought a G2 today, and have been using it for some hours but i have the same problem as you.. will have to look for a solution, or maybe try a return..
Click to expand...
Click to collapse
My phone still says it's awake all the time and Google play services is using the Lions share of my battery, however I am getting about 2 days out of my battery like I used to before this problem. It's annoying, but I don't think it's that bad. You can try disabling those 2 receivers with auto run manager like I did but if your battery is even worse after that I would just re-enable them and leave it.

wulsic said:
See or it's maybe related to google play services, click on it and see if there are maybe any related things. If you are going to return your phone for this reason then I don't get you cause this is just a awesome phone. Try to maybe do a factory reset if nothing works.
Click to expand...
Click to collapse
The phone was bought off as the last one on the store. Worten, in Portugal. So it was a demo phone. I have no idea, for how long the phone was plugged in to the charger, being demo'ed. I am afraid the batttery has lost some of it's power. Nonetheless, i will use it for a few days and then return it for warranty if i don't think it's in prime condition...
Also, i had an HTC HD2 with custom rom, then moved to a Galaxy S2 with a custom rom as well (AOSP 4.4.2 with Cyanogen) and now i am using the stock LG rom. I can't say exactly that it sucks, but for sure i prefer the stock AOSP experience with the right tweeks.

Well, a patently I got 6:55, and 33 hours of phone usage on my first experience with the car phone. I used 3g, wife, and web browsing. I don't know if it's good, but I highly doubt it...

New firmware V2.19.40.18 (available now !)

Another update from Asus is rolling out!
【Version】
V2.19.40.18_20150612 (ZE551ML)
V2.19.40.12_20150612 (ZE550ML)
【Release Date】
2015/06/18
【Release Note】
1 Update phone APN version to 105.
2 Update Houdini 5.0.2
3 Fixed camera can not open sometimes when using zenflash
4 Improve volume of recording video will increase and decrease alternately.
5 Do not config Routing.Configure.HWCodec.Playback.Mixers.Headset when using FM.
6 Fixed some BLE device can not auto reconnect
7 Improve service stability
8 Improve modem stability from crash
9 Improve call stability
10 Improve signal bar stability for sim 2
11 Quick Settings: Change "Reading Mode" button as "Bluelight filter"
12 Improve SysteM UI stability and modify Japanese strings
13 Improve lockscreen UI and stability
14 Fix Homescreen Wallpaper randomly lost previous settings and half black screen issue
15 Snap View-add reset Snap View password function
16 Fix Contacts search failure issue when default language was set as HK Chinese
17 Improve Auto start manager stability and fix FB broadcast issue
18 Improve Task Manager UI and rotation stability
19 Fix calculator stability issue and UI bug under Quick Memo App
20 Improve Launcher and Multi user stability from System and framework
21 Fix Google Voice incoming call source issue and the failure to change to Google Voice number
22 Fix the issue that miss call counts failed to disappear on home when Multi user
23 Improve File Manager stability
24 Add ASUS ZenUI PC Suite
25 Fix all touch gestures to be enabled when change back to owner mode
26 Fix ASUS Browser issue
27 Fix the issue that Audio Wizard cannot be launched when turn off BT
28 3rd party app update
29 Update touch FW
30 Update JP IME ATOK to v 1.0.1
31 Modify Japanese strings in Power Saver App
32 Fixed turn on the camera must unlock by using zenmotion issue
33 Fixed an error message shows up after removing privacy mode and adding new user immediately issue.
34 Fixed wallpaper needs to have second clicks for reaction issue.
35 Fixed built-in browser features a new incognito window has no effect issue.
36 Fixed close contacts shows other programs issue.
37 Fixed built-in calendar Click settings will flash issue.
38 Fixed ringtones into vibrate mode when the camera is off camera sounds issue.
39 Fixed volume keys to adjust the ring abnormaliy issue.
40 Fixed wallpaper Figure has been broken issue.
41 Fixed after the system optimization, message management have stopped running issue.
42 Add Battery charging ready reminder feature.
43 Enable FM Radio for Turkey.
Click to expand...
Click to collapse

"33. Battery-Add Battery charging ready reminder feature: User could set battery level under charging to receive the reminder."
seems they have given up on fixing the issue therefore just adding an alarm to recharge the battery... not good!

I saw the update but they deleted it on their download support page for now.

SBFarooq said:
"33. Battery-Add Battery charging ready reminder feature: User could set battery level under charging to receive the reminder."
seems they have given up on fixing the issue therefore just adding an alarm to recharge the battery... not good!
Click to expand...
Click to collapse
I am optimistic about the development department of Zenfone, atleast they are working deep enough about their flagship. The battery drainage is an issue for almost every Android L(5.0) user. I hope this issue will be fixed after we get update for 5.1.1 .
Asus is also expending their QA inspection team this will help for the end user to have stable releases afterwards.
Thumbs up Asus for the efforts.

I just received my phone this morning. it's a CN model. I charged it to 100%. Played a bit with it at work when I had the chance. I've spent the rest of the evening setting it up. The latest update is sitting waiting for download but I won't take it until tomorrow. I want to see how it goes overnight.
Even given the short time I've had it I'm pretty sure the battery stats are simply misreported and the poor battery life that some people are experiencing are down to individual setups or faulty devices. I've done nothing yet to conserve battery other than turning off the stupid ASUS battery saver, deleting some Chinese bloat and setting Wi-Fi to switch off when screen is off. From what I can see battery is comparable to my G2 which I was very happy with. As you can see from the screen shots it's pretty good.
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Sent from my ASUS_Z00ADA using Tapatalk

corrsea said:
I just received my phone this morning. it's a CN model. I charged it to 100%. Played a bit with it at work when I had the chance. I've spent the rest of the evening setting it up. The latest update is sitting waiting for download but I won't take it until tomorrow. I want to see how it goes overnight.
Even given the short time I've had it I'm pretty sure the battery stats are simply misreported and the poor battery life that some people are experiencing are down to individual setups or faulty devices. I've done nothing yet to conserve battery other than turning off the stupid ASUS battery saver, deleting some Chinese bloat and setting Wi-Fi to switch off when screen is off. From what I can see battery is comparable to my G2 which I was very happy with. As you can see from the screen shots it's pretty good.View attachment 3365068View attachment 3365069
Sent from my ASUS_Z00ADA using Tapatalk
Click to expand...
Click to collapse
so does this mean your device is running on CN firmware? so maybe the biggest culprit for battery drain in WW is google playstore and other gapps, because CN firmware didnt preinstalled with gapps..

corrsea said:
I just received my phone this morning. it's a CN model. I charged it to 100%. Played a bit with it at work when I had the chance. I've spent the rest of the evening setting it up. The latest update is sitting waiting for download but I won't take it until tomorrow. I want to see how it goes overnight.
Even given the short time I've had it I'm pretty sure the battery stats are simply misreported and the poor battery life that some people are experiencing are down to individual setups or faulty devices. I've done nothing yet to conserve battery other than turning off the stupid ASUS battery saver, deleting some Chinese bloat and setting Wi-Fi to switch off when screen is off. From what I can see battery is comparable to my G2 which I was very happy with. As you can see from the screen shots it's pretty good.View attachment 3365068View attachment 3365069
Sent from my ASUS_Z00ADA using Tapatalk
Click to expand...
Click to collapse
Trust me. The battery life is aweful and is not just down to user error. I've used many, many android devices set up using similar parameters. Wether android 5.0 is to blame or something else, it is not my user error causing my excessive battery drain.

SBFarooq said:
"33. Battery-Add Battery charging ready reminder feature: User could set battery level under charging to receive the reminder."
seems they have given up on fixing the issue therefore just adding an alarm to recharge the battery... not good!
Click to expand...
Click to collapse
Um, what issue are you talking about and why are you jumping to conclusions? Don't jump to conclusions. You literally have no idea what ASUS' intent is and why would you complain when our phone has received an update every 2wks so far?
---------- Post added at 02:53 PM ---------- Previous post was at 02:49 PM ----------
bobsie41 said:
Trust me. The battery life is aweful and is not just down to user error. I've used many, many android devices set up using similar parameters. Wether android 5.0 is to blame or something else, it is not my user error causing my excessive battery drain.
Click to expand...
Click to collapse
Um, even with Android OS battery usage at 21% and screen at 12%, according to batt stats screen, I still managed around 5.25hrs SoT.... With 32% battery left.
Granted this is just from last night to this morning and is mainly just Web browsing and playing some music (was up late couldn't sleep!). WiFi/Bluetooth/GPS/autosync on.I've frozen/disabled most pre-installed apps and services.

Glad to see updates with Google Voice, I've had some issues with outgoing calls not using voice.

I am not jumping to conclusions... Merely stating the obvious statement made by Asus... Secondly.. I believe in Asus and their commitment to this device .. But building up another wakelock is not the way to go IMO..

dasklney said:
I saw the update but they deleted it on their download support page for now.
Click to expand...
Click to collapse
Yup they removed it.
Posted using my phone.

jose makalolot said:
Yup they removed it.
Posted using my phone.
Click to expand...
Click to collapse
Yes, but you still can download with the old link

dasklney said:
Yes, but you still can download with the old link
Click to expand...
Click to collapse
Old does not work either.
Posted using my phone.

cangcan said:
so does this mean your device is running on CN firmware? so maybe the biggest culprit for battery drain in WW is google playstore and other gapps, because CN firmware didnt preinstalled with gapps..
Click to expand...
Click to collapse
Yes, that's why I'm running with CN for a while. I don't have to have google apps as system apps. Once I have a setup I'm happy with I'll back up and test it for a while with them moved to system to see if there is any difference. I'll then switch to WW and compare that. (I'll also pick up my google drive offer at that stage.)
It has lost about 3% overnight so it's heading for about 6 - 7 hours SOT. I'm guessing that that will drop to about 5 hours in normal use given other people's reports.
I've already ruled out the android OS in battery stats as causing any real drain. I've encountered this before with a previous device. All the manufacturer did was adjust the way battery stats was reported. There was no underlying bug to fix.
I'm taking things slowly and methodically with setup so if I do run into any real battery issues I should be able to easily identify the culprit(s).
I'll take the OTA some time in the next day or so and see how it compares. I'll feed back in this thread but I guess the WW update will be out by then.

jose makalolot said:
Yup they removed it.
Posted using my phone.
Click to expand...
Click to collapse
dasklney said:
Yes, but you still can download with the old link
Click to expand...
Click to collapse
jose makalolot said:
Old does not work either.
Posted using my phone.
Click to expand...
Click to collapse
they haven't deleted it... here is the direct link http://dlcdnet.asus.com/pub/ASUS/ZenFone/ZE551ML/UL-Z00A-CN-2.19.40.16-user.zip
Source: https://www.asus.com/Phones/ZenFone_2_ZE551ML/HelpDesk_Download/

corrsea said:
Yes, that's why I'm running with CN for a while. I don't have to have google apps as system apps. Once I have a setup I'm happy with I'll back up and test it for a while with them moved to system to see if there is any difference. I'll then switch to WW and compare that. (I'll also pick up my google drive offer at that stage.)
It has lost about 3% overnight so it's heading for about 6 - 7 hours SOT. I'm guessing that that will drop to about 5 hours in normal use given other people's reports.
I've already ruled out the android OS in battery stats as causing any real drain. I've encountered this before with a previous device. All the manufacturer did was adjust the way battery stats was reported. There was no underlying bug to fix.
I'm taking things slowly and methodically with setup so if I do run into any real battery issues I should be able to easily identify the culprit(s).
I'll take the OTA some time in the next day or so and see how it compares. I'll feed back in this thread but I guess the WW update will be out by then.
Click to expand...
Click to collapse
Everything you have said is exactly what I said even down to the G2 similarities. I see no issue with battery in comparison to other android phones.
Sent from my ASUS_Z00AD using Tapatalk

Did it fix the notifications bug?

7. Fixed some BLE device can not auto reconnect
Click to expand...
Click to collapse
I hope this update fix the issue of my Mi Band can not auto reconnect

The file size is over 1 Gb, this OTA should be contain a lot of fixes... i hope ....

CN 2.19.40.16 is removed again from ASUS website. (https://www.asus.com/Phones/ZenFone_2_ZE551ML/HelpDesk_Download/)
I guess it got some serious BUG that has made ASUS remove it
=============================
corrsea said:
I just received my phone this morning. it's a CN model. I charged it to 100%. Played a bit with it at work when I had the chance. I've spent the rest of the evening setting it up. The latest update is sitting waiting for download but I won't take it until tomorrow. I want to see how it goes overnight.
Even given the short time I've had it I'm pretty sure the battery stats are simply misreported and the poor battery life that some people are experiencing are down to individual setups or faulty devices. I've done nothing yet to conserve battery other than turning off the stupid ASUS battery saver, deleting some Chinese bloat and setting Wi-Fi to switch off when screen is off. From what I can see battery is comparable to my G2 which I was very happy with. As you can see from the screen shots it's pretty good.View attachment 3365068View attachment 3365069
Sent from my ASUS_Z00ADA using Tapatalk
Click to expand...
Click to collapse
Are you sure by TURNING OFF ASUS Battery Saver will Make this phone has a lot better battery life?

Putting the 2-day battery life claim to the test

I'm usually a fairly heavy user, but this week I haven't been quite as hard on the Z5C as I normally am, and I saw it as a chance to test the 2-day battery claims.
Everything was left turned on as per usual - Wifi, Bluetooth, LTE and the like were left on for the most part. Screen was on auto-brightness, all the usual stuff. I didn't try to 'milk' it for more. I didn't use any of the battery life extending modes.
52 hours and 26 minutes later, with 4 hours and 26 minutes of screen-on time, I was at 2%. I'd definitely call that a pass.
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that's amazing.. im experiencing 9 hours of battery life with 10 mins screen on time, trying to figure out how to fix wake lock with sonys tasks app and some calendar storage app but seem to be completely unsuccessfull in this... you think if i do a factory reset of the device that'll fix it?

mediafellow said:
that's amazing.. im experiencing 9 hours of battery life with 10 mins screen on time, trying to figure out how to fix wake lock with sonys tasks app and some calendar storage app but seem to be completely unsuccessfull in this... you think if i do a factory reset of the device that'll fix it?
Click to expand...
Click to collapse
Mine is changed out now because of faulty lens but I've used it for a few days and I got same usage as OP.
you might want to perform a full factory reset and if it doesn't solve your problem return it to Sony for warranty.
Also, do not close the recent apps constantly. Let them run in background will improve the way lollipop (and soon marshmallow) runs.

langeveld024 said:
Mine is changed out now because of faulty lens but I've used it for a few days and I got same usage as OP.
you might want to perform a full factory reset and if it doesn't solve your problem return it to Sony for warranty.
Also, do not close the recent apps constantly. Let them run in background will improve the way lollipop (and soon marshmallow) runs.
Click to expand...
Click to collapse
thanks i've just done a factory reset and unfortunately still same two processes are holding up hundreds of wakelocks on my devices not sure how to further troubleshoot / fix this..
processes are :
com.android.providers.calendar
com.sonymobile.tasks
does anyone know what those processes do and how i can go about just removing them or replacing with something not buggy? will be leaving for an overseas trip in a weeks time (away for a whole month) and this new phone which i got especially for it (good camera and waterproof) will be completely useless to me if the battery keeps failing on me. love the phone so far but this battery issue is killing my transition experience
had full charge at 9am and now at 4pm already at 33% battery life

mediafellow said:
thanks i've just done a factory reset and unfortunately still same two processes are holding up hundreds of wakelocks on my devices not sure how to further troubleshoot / fix this..
processes are :
com.android.providers.calendar
com.sonymobile.tasks
does anyone know what those processes do and how i can go about just removing them or replacing with something not buggy? will be leaving for an overseas trip in a weeks time (away for a whole month) and this new phone which i got especially for it (good camera and waterproof) will be completely useless to me if the battery keeps failing on me. love the phone so far but this battery issue is killing my transition experience
had full charge at 9am and now at 4pm already at 33% battery life
Click to expand...
Click to collapse
for testing purposes.. do you have a calendar app? can you disable it? or clear the cache from settings >apps...There is some rogue app that is constantly accessing storage.. I've had it happen on my old phone with custom ROM.. also do you have exchange/gmail sync try changing that

for battery problems you can use Wakelock Detector without root (following the guide in the google play page https://www.google.com/url?q=https:...A&sa=D&usg=AFQjCNFCL0Z8eiWrc0xTYvz2hQAgPd3xoA ) and, if you find system apps that can't be disabled manually, you can use Debloater (windows application) http://forum.xda-developers.com/android/software/debloater-remove-carrier-bloat-t2998294 which can Hide ( pm hide command) the system apps. I don't know exactly what the command does but i hid three system packages and they disappeared from the running processes list: either they are completely hidden from the system or they are stopped and not running. For example, i hid the Software firmware upgrade app and its settings in Phone Info disappeared along with the Software upgrade notification in status bar.

My battery life was fine until I recently updated to latest fw version using Flashtool. I can't update the phone with PC Companion anymore. I'm a heavy user, I play games, watch videos, check social networks, listen to music, download apps etc. But before using flashtool battery can last me a day or so. I don't think it could last more than a day if I don't use it. At night, for example, sometimes I let the phone idle, even with stamina mode on, the phone drains 1% per hour. I don't think that's good. I hope with the marshmellow update battery can improve.

mediafellow said:
thanks i've just done a factory reset and unfortunately still same two processes are holding up hundreds of wakelocks on my devices not sure how to further troubleshoot / fix this..
processes are :
com.android.providers.calendar
com.sonymobile.tasks
does anyone know what those processes do and how i can go about just removing them or replacing with something not buggy? will be leaving for an overseas trip in a weeks time (away for a whole month) and this new phone which i got especially for it (good camera and waterproof) will be completely useless to me if the battery keeps failing on me. love the phone so far but this battery issue is killing my transition experience
had full charge at 9am and now at 4pm already at 33% battery life
Click to expand...
Click to collapse
do you set up your phone after a factory reset?
U should try this: factory reset, not completely set up phone, only necessary apps like WhatsApp, Google account etc, maybe disable or remove the unneeded apps and then keep using the phone for 2 - 3 charge cycles. Then all should be good. If not, return the phone. If all is good by then, u know it's not fault of firmware or phone but fault of some app u installed.
rolo143 said:
My battery life was fine until I recently updated to latest fw version using Flashtool. I can't update the phone with PC Companion anymore. I'm a heavy user, I play games, watch videos, check social networks, listen to music, download apps etc. But before using flashtool battery can last me a day or so. I don't think it could last more than a day if I don't use it. At night, for example, sometimes I let the phone idle, even with stamina mode on, the phone drains 1% per hour. I don't think that's good. I hope with the marshmellow update battery can improve.
Click to expand...
Click to collapse
Did u flash userdata.sin (factory reset)?
I really can't believe some people having this bad battery life.
It must be some bad app or something, I think..
The only way to test is full factory reset including wipe internal SD and then test the phone without fully setting everything up (installing apps etc)

I think I'll do a factory reset. But maybe when the marshmellow update comes, I don't want to have to set everything up again. Btw if I want to update phone flashing a new fw via flashtool is it recommended to do a factory reset before or after updating? Thanks
Sent from my E5803 using Tapatalk

Mine has only maybe 30ish % left in the evening after one day with some youtube on the bus to and from work and random email and IM check ( 3-4 hours screen on total). Maybe it's youtube taking away all my battery...
I suspect it can only last until noon the next day maximum if I do my normal use and don't push it on power saving.... I don't know if I can call it a pass.. I guess it's somewhere between a pass and fail to me..
but, I do notice that it drained very fast in the first few days when I bought the device. After using it for a week it's a lot better. So if anyone is wondering why the battery life on your new device is really bad, try use it for a few days.