N7 goes dead for no reason. - Nexus 7 General

I've had my N7 for almost a month now. Upgraded to 4.2.1 almost immediately, so had no baseline to compare against. Device has been working fine and I am very happy with it. That is, except for one small issue: a couple of times it has gone completely dead overnight for no apparent reason. After the first time I installed a task killer and Juice Defender that I use on my S2 with excellent results. Things were working fine and then today the N7 was completely dead again. So dead it would not even turn on until it got 2% charge on it. In looking at the battery stats it showed NFC service accounting for 60% of the usage with Facebook taking another 20% Screen time was a measly 15%! To my knowledge, I don't even use NFC so why is it sucking my battery dry? I have my N7 in a case with the magnetic switch. Both times it did this it was after I was reading a book and put the device on my nightstand (closed) with my TV remote on top of it. Could the NFC be trying to communicate with my TV remote? WTF? Any suggestions as to what is causing this greatly are appreciated.

Its retarded. Jk. I just got my N7 for Christmas but I would try removing case, etc. And setting it away from everything else to see if that fixes anything
Sent from my Nexus 7 using xda app-developers app

turn off nfc if youre not using it. main settings, wireless and networks, more, disable nfc. if youre rooted, and dont plan on usimng nfc, id delete it and tags from /system/app/. i delete it after every rom flash since i dont use it. thats one less thing that wants to suck my battery juice dry.

Miami_Son said:
I've had my N7 for almost a month now. Upgraded to 4.2.1 almost immediately, so had no baseline to compare against. Device has been working fine and I am very happy with it. That is, except for one small issue: a couple of times it has gone completely dead overnight for no apparent reason. After the first time I installed a task killer and Juice Defender that I use on my S2 with excellent results. Things were working fine and then today the N7 was completely dead again. So dead it would not even turn on until it got 2% charge on it. In looking at the battery stats it showed NFC service accounting for 60% of the usage with Facebook taking another 20% Screen time was a measly 15%! To my knowledge, I don't even use NFC so why is it sucking my battery dry? I have my N7 in a case with the magnetic switch. Both times it did this it was after I was reading a book and put the device on my nightstand (closed) with my TV remote on top of it. Could the NFC be trying to communicate with my TV remote? WTF? Any suggestions as to what is causing this greatly are appreciated.
Click to expand...
Click to collapse
Turn off NFC, Lose the case, and uninstall Facebook and you're good. Problem solved.
Sent from my Galaxy Nexus using Tapatalk 2

Might have the loose battery cable that will drain the battery quick to
Sent from my Nexus 7 using Tapatalk 2

simms22 said:
turn off nfc if youre not using it. main settings, wireless and networks, more, disable nfc.
Click to expand...
Click to collapse
Tried this, but the Disable option is greyed out and unavailable.

I'd try a FACTORY reset
Sent from my HTC One X using xda app-developers app

elsworth1983 said:
I'd try a FACTORY reset
Sent from my HTC One X using xda app-developers app
Click to expand...
Click to collapse
Being I'm on unrooted stock ROM I fail to see how that would help. Left the N7 on the nightstand last night without the TV remote nearby and only lost about 4% battery. Hmmmm....

Only a suggestion. As this is what I would do 1st
Sent from my HTC One X using xda app-developers app

Miami_Son said:
Being I'm on unrooted stock ROM I fail to see how that would help. Left the N7 on the nightstand last night without the TV remote nearby and only lost about 4% battery. Hmmmm....
Click to expand...
Click to collapse
Being unrooted and stock does not mean the software installed correctly a factory reset should have been the first thing you tried that is why that option is there
Sent from my Nexus 7 using Tapatalk 2

rcarnes911 said:
Being unrooted and stock does not mean the software installed correctly a factory reset should have been the first thing you tried that is why that option is there
Sent from my Nexus 7 using Tapatalk 2
Click to expand...
Click to collapse
Actually, that option is there so that you can remove all user data in the event you need to sell it or give it to someone else. Doing a wipe/reset is a major pain, especially on an unrooted device with no TiBU to restore apps and data. If it happens again I will consider it, but so far it appears to be working fine. Haven't seen NFC started since that one night. I had another phone on the nightstand that may have been why NFC initiated.

simms22 said:
turn off nfc if youre not using it. main settings, wireless and networks, more, disable nfc. if youre rooted, and dont plan on usimng nfc, id delete it and tags from /system/app/. i delete it after every rom flash since i dont use it. thats one less thing that wants to suck my battery juice dry.
Click to expand...
Click to collapse
NFS does *not* drain battery, unless you scan a tag, etc..
in other words, if its enabled, and but you dont use it, there is not battery used.

wavrunrx said:
NFS does *not* drain battery, unless you scan a tag, etc..
in other words, if its enabled, and but you dont use it, there is not battery used.
Click to expand...
Click to collapse
Like I said, when I discovered this latest rundown and looked at the batt stats, NFC service was responsible for 60% of the usage. The phone was simply sitting on my nightstand after reading a Play Books book, so I have no idea what I might have done to turn NFC services on or why my task killer did not kill it while it sat idle all night. My only guess is that the proximity of another smartphone or TV remote set it off, but I don't really know. I moved both items and it hasn't happened again since.

Related

Anyone else with defective Atrix HD's

I have already had 2 defective Atrix HD's. I am trying to decide if it is worth keeping at it, or if I should give up and switch to something else.
My first one had a sudden battery discharge issue, and my second one ended up having a dead headphone jack, after only a month of use.
Poor build quality, or bad luck?
AT&T has been good to me, and has sent out both replacements under warranty exchange. My third Atrix HD is on its way now.
Would say bad luck!
Build qual. is perfect for me!
heifeif said:
Would say bad luck!
Build qual. is perfect for me!
Click to expand...
Click to collapse
I have to agree with him. I've had nothing but perfection with my AHD.
I think there's no need to make double threads with the same topic.
It might be a bad luck. I even got my Atrix HD in out of box condition and never had any problems till now.
I agree with the double topics, however he way i phrased it in the initial topic got it closed as pointless. (But the thread complaining about the at&t logo on the front goes on)
Thank you for sharing you experience with me. It tells me that it might be bad luck and i should continue with the atrix and not give up on it.
Sent from my MB886 using xda app-developers app
I've heard nothing but rave reviews from my friends with the newer Motorola phones so I'd try out the third and see how it works out.
Sent from my Galaxy Nexus using Tapatalk 2
I am having issues too, I never had these issues with my atrix 1.
1-> Rebooting itself (funny thing is it reboots during the standby(ideal on table or on sofa etc)
2-> Camera initialization error. It is not guarantee to work all the time if i got this error i have to reboot the phone.
3->If the battery is less than 5% screen getting unresponsive even charged fully i have to force reboot to avoid this situation
4-> I can see Android with error symbol during the boot sometimes
5-> No change even after recent OTA
Update: I deleted few apps and disabled all AT&T apps. Now phone working fine no reboots, no camera errors and improved battery. Looks like one App causing all these issues. Don't know exactly what app created these issues.
third phone seems a bit sluggish, but that likely is something I installed. So far so good. Time will tell.
I have noticed another bug, when rebooting while it is charging, I can lock this thing up good (The screen goes blank... but you can tell it is still on. Then the device becomes unresponsive to anything but the force reboot.). I found the force reboot option doing a Google search and got it working. The simple work around is that I never power it down and then re-boot it while attached to the charger.
Thank you for your feedback. It is reassuring to find out that I am the only one with these kinds of issues.
As for the previous poster, if you still have these issues after a hard reset to factory, then I would get an exchange on it.
usually when you shut it off while connected, the phone starts up again into the battery indicator screen, after that loads you can start the phone back up properly
I've got an issue when I tether. My screen goes blank and the phone is completely unresponsive. Once I shut wifi off on my laptop which was using my hot spot the phone awoke with an error that my home screen was unresponsive. :-\
Sent from my MB886 using Tapatalk 2
boufa said:
third phone seems a bit sluggish, but that likely is something I installed. So far so good. Time will tell.
I have noticed another bug, when rebooting while it is charging, I can lock this thing up good (The screen goes blank... but you can tell it is still on. Then the device becomes unresponsive to anything but the force reboot.). I found the force reboot option doing a Google search and got it working. The simple work around is that I never power it down and then re-boot it while attached to the charger.
Thank you for your feedback. It is reassuring to find out that I am the only one with these kinds of issues.
As for the previous poster, if you still have these issues after a hard reset to factory, then I would get an exchange on it.
Click to expand...
Click to collapse
The sluggishness was actually a weather app that was trying to draw overlaying graphics onto my screen, and so every first touch cleared the "clouds" then the second touch was actually acted on by the device... foolish design. I have to figure that apps are/can be a significant factor to the build quality of a phone.
For example, maybe..just maybe my battery issue was driven by a misbehaving app, rather than a physical defect. The device talks to the battery, and the battery talks to the device, and they all talk to the charger. I know in 1 case, the battery was reporting as full. So the device was telling the charger that it did not need any juice. In reality the battery was almost dead, and then it shut off with a fully drained battery. Upon re-boot it was reporting a dead battery, so it then charged. There is no way to tell what caused that communications breakdown.
My headphone jack...well, no arguments, that was a defective part. But on other things you never know.
should I get a replacement?
Should I try to get a replacement based on my phone's bugs?
would a replacement likely be free of these bugs?
I got an unbranded AHD off of ebay, supposedly unlocked (but have yet to try a SIM to test it.. getting one in 2 days).
The "System version" on the phone says 77.55.17.MB886.BellMobility.en.CA, so I'm guessing it's a Bell Mobility model. :cyclops:
The bugs:
-Possible high-rate battery drain while off-
One day I was fiddling with it using WiFi and GPS, and turned it off for the night. The battery was around 60% when I turned it off. (I'm 95% sure it was turned off, rather than put in Sleep). The next day when I turned it on, the battery was down below 30%.
I had "Battery Mix" app installed, and it shows the battery level graph continuously (when the phone is off, on, or sleeping. Battery Mix showed the Battery was being used up at about the same rate while off, compared to the rate it was being used while it was on.
-Battery usage data not available-
Next is a commonly mentioned issue with ICS, although people at Motorola's forums don't seem to have ever seen the issue.
The Battery Usage screen displays : "Battery usage data not available". It will show the on-times for Mobile network, Wi-Fi, Awake, Screen On, and Charging.... but it doesn't how any battery usage for specific processes or apps.
-Mobile network signal, even when no SIM installed-
This is another bug with the Battery screen. For a couple days it was fine, then one day I was installing and trying a few mobile data on/off toggle apps/widgets. Starting after that, the Battery screen shows steady activity for "Mobile network signal", even though no SIM is installed.
(a system monitor app shows that there is no mobile activity).
I've done a factory rest, and after that and with no apps installed, it still shows steady mobile activity. So it's pretty clear that it started after installing mobile toggle widgets, but shouldn't a factory reset erase the cause and result in the absence of the bug?
.. Battery usage data not available-- it would be a helpful feature, but I wouldn't get a replacement because of it.
.. Mobile network signal with no SIM-- Since a monitoring app shows that there is no mobile activity, it's not actually using the battery. However, it makes me wonder if this bug could also suggest a bug with mobile operation.
.. high-rate battery drain while off-- this is more a matter of concern.
I just got my HD a week ago because i sent back my A2 for insurance and they didnt have any left. After a week of use the headphone jack took a poop. Getting my replacement soon...
Sent from my MB886 using xda app-developers
collieflower said:
I just got my HD a week ago because i sent back my A2 for insurance and they didnt have any left. After a week of use the headphone jack took a poop. Getting my replacement soon...
Sent from my MB886 using xda app-developers
Click to expand...
Click to collapse
Same problem but out of return period and motorola wants $160 to fix it.
Sent from my MB886 using xda premium
darknessrise1234 said:
Same problem but out of return period and motorola wants $160 to fix it.
Sent from my MB886 using xda premium
Click to expand...
Click to collapse
Return for bugs? No. If they are the same issues that others are having, then most likely returning it for and exchange would not solve your problems.
The headphone jack. That's interesting. Part of me is hoping that the headphone jack is bad on my new one eventually, because this is my third Atrix HD and AT&T said that I can switch to a different model if this one fails.
I really do like the phone, but I should have waited for the Note 2.(completely different phone, I should have thought it through better)
I was going to return it to Walmart att store and get a one x, but I was out of that. So I then contacted Motorola to get it repaired and they're smoking something up there.
Sent from my MB886 using xda premium
Now on my 3rd hd. SIM card slot kept ejecting the card. Last chance moto. Then im switching to samsuck

[Q] battery issues - 3 charges most days

Hi everyone,
I brought this wonderful phone (or atleast i thought wonderful) couple of weeks ago ( delivered on release date)
Now i expected the battery to be good as its 2300 mah but it the phone doesnt seem to last no way near as long as other claim i had an s3 before this htc one, 9 times outta 10 i only had to charge it once a day and never activated power saver mode,
On the htc one i constantly have power saver turn on and it just doesnt seem to be doing anything , i havnt changed my usage of my phone, if anything ive used it less,
For example the s3 lasted my full 8 hour shift with nothing running expcept the tunein radio app, the htc one only seems to last 4-5 hours with everything closed except the tune in radio app. Ive not changed networks so low signal shouldnt be causing the drain as there isnt a difference in signal levels,
So is there anything else i can do to stop bettery draining. Bluetooth, wifi, nfc, etc all turned off, screen on auto brightness ,
Sent from my htc one with just 26% battery left and i havnt even rrached 4 hours of my shift yet, left house at 9:45 with 100%
You probably have an app preventing the phone from sleeping. There are loads of tutorials on how to check for partial wake locks to fix this.
BenPope said:
You probably have an app preventing the phone from sleeping. There are loads of tutorials on how to check for partial wake locks to fix this.
Click to expand...
Click to collapse
Whenever im finished with the phone i always double clicked the home button a remove all apps, is this different ? If so could you tell me how i find if an app is preventing the phone from sleeping ?
okz19 said:
Whenever im finished with the phone i always double clicked the home button a remove all apps, is this different ? If so could you tell me how i find if an app is preventing the phone from sleeping ?
Click to expand...
Click to collapse
Try this or this to detect the wakelocks. For more info on wakelock, read this thread
Definitely sounds like you have an app which is preventing the phone from sleeping and you should be getting a pretty easy 1 day out the battery at the very least in moderate use.
okz19 said:
Whenever im finished with the phone i always double clicked the home button a remove all apps, is this different ? If so could you tell me how i find if an app is preventing the phone from sleeping ?
Click to expand...
Click to collapse
How have you TuneIn setup.
As general when you press pause rather than stop, itt continues to record that station and is always active. Iif you go into the app settings and turn off 'autostop recording' which should be defaulted to 8 hours - turn this to never and try again to see if it improves. I've seen TuneIn eat battery life on other devices where ths happens (people thinkits stopped when its just paused and recording away in the background...
That's possible ^^^^, however if he was just to hit exit on the app it should stop the services. That and really want to be sure, swype it away in the multitasking section.
Can try Betterbatterystats in the play store as a lot of people rave about that.
Also make sure Google Now is disabled. It sucks battery life like no other. Awesome tool, however to much drain on the battery.
Sent from a galaxy far away!
Would be great if you posted a picture of the battery use. You must have a wake lock.
Sent from my GT-I9100 using xda app-developers app
Guaranteed that you have horrible wakelock issues. Rogue apps, bad settings, and anything in between could be the cause.
I can go to bed with the phone fully charged and, 8 hours later, wake it up to see it's still at 100% (mobile data, GPS, WiFi left active.)
Once I'm bored of constantly picking it up and playing with it (i.e. get back to standard usage patterns) I get the feeling it will likely run to 3 or more days between charges. Won't be this month though
Sent from my Tricked out HTC One via xda-developers application
AW: [Q] battery issues - 3 charges most days
Tetsumi06 said:
I can go to bed with the phone fully charged and, 8 hours later, wake it up to see it's still at 100% (mobile data, GPS, WiFi left active.)
Once I'm bored of constantly picking it up and playing with it (i.e. get back to standard usage patterns) I get the feeling it will likely run to 3 or more days between charges. Won't be this month though
Sent from my Tricked out HTC One via xda-developers application
Click to expand...
Click to collapse
The Same happens with my phone.
The battery is really good. It feels like it is the battery time of my Onex x3
gesendet von dem One and only
Well there are various reasons for this..Maybe an app that drains much battery not leaving cpu to sleep.You can download better battery stats and see the wakelocks and the cpu states that your cpu runs on.. You may also need a battery calibration.It will not increase the battery capacity of course but it will eliminate the faulty battery stats bin that tells the system the battery percentage.You may have for example 25% battery left and your device may show 2% or even close.
I assume that you do not have wifi always on, screen on for hours or using mobile data..The consumption of battery is huge.
Tetsumi06 said:
I can go to bed with the phone fully charged and, 8 hours later, wake it up to see it's still at 100% (mobile data, GPS, WiFi left active.)
Once I'm bored of constantly picking it up and playing with it (i.e. get back to standard usage patterns) I get the feeling it will likely run to 3 or more days between charges. Won't be this month though
Sent from my Tricked out HTC One via xda-developers application
Click to expand...
Click to collapse
how ? when u first got the phone ? did you turn it on or did you charge it?
Worth dialling *#*#3424#*#* and doing the battery test, although as everyone else has said it's more than likely an app.
I had a sgs2 over 2 years,rooted and optimized in battery usage, i was already happy. Now with the htc one it's a completely new experience....already now after a few days,with root but still no tweaks i get 60% left at 11pm!before the sgs2 was empty...can't wait
For fiture developement!!
Gesendet von meinem HTC One mit Tapatalk 2
Download Better Battery Stats, leave it for a day and then upload a screenshot of your wakelocks. My battery is easily lasting the day (ended at 11pm at 76% yesterday)
Same-ish problem.
Hey i'm having a similar problem,
I bought the HTC One (silver, 32Gb) A couple of days ago and the battery isn't even lasting a day with what I'd say as Medium/light usage. I do leave Mobile data on so i can get Skype/Facebook/line calls ect instantly, but i assumed that's normal.
I just left my phone alone for an hour with the screen off and it lost 4%, could this be a battery defect?
Are you telling me to get over a days usage, i have to leave mobile data turned off and only turn it on when i want to use Skype ect?
I saw a post above that one guys gets 3 days of usage with Mobile date, Wifi, etc all turned on. Is this the norm, or does he have a super hero battery?
I see the general consensus is to download "Better Battery Stats" and send pics of wakelocks, but Is there comparable app for free that will do the trick, as i don't have money currently on my English account.
Thanks to all those taking time out of their own lives to help others.
BenPope said:
You probably have an app preventing the phone from sleeping. There are loads of tutorials on how to check for partial wake locks to fix this.
Click to expand...
Click to collapse
Uh.. Tune in radio playing is a wake lock.
You XDA'ers automatic response system.

Battery Drain?

When I got the phone my battery was pretty phenomenal (comparatively speaking). But it seems since I took the update that Sprint pushed out a few weeks ago, the battery can't make it more than a few hours with light/moderate use. Its really horrid to be honest. Hoping the eventual 4.2.2 OTA will fix this. But in the meantime I wanted to know if anyone else was having this issue and possibly help identify the source of the problem. (By the way I am not rooted)
daltonroland said:
When I got the phone my battery was pretty phenomenal (comparatively speaking). But it seems since I took the update that Sprint pushed out a few weeks ago, the battery can't make it more than a few hours with light/moderate use. Its really horrid to be honest. Hoping the eventual 4.2.2 OTA will fix this. But in the meantime I wanted to know if anyone else was having this issue and possibly help identify the source of the problem. (By the way I am not rooted)
Click to expand...
Click to collapse
Have you checked the version of your Google Play Services APK? It can cause a particularly nasty bug on HTC devices.
Rirere said:
Have you checked the version of your Google Play Services APK? It can cause a particularly nasty bug on HTC devices.
Click to expand...
Click to collapse
Play Services is v 3.1.36 but the actual Play Store is v 4.1.10 which is said to "fix battery drain issue." Still seems to be draining pretty rapidly. Any fix you know of?
Can we see your usage stats?
daltonroland said:
Play Services is v 3.1.36 but the actual Play Store is v 4.1.10 which is said to "fix battery drain issue." Still seems to be draining pretty rapidly. Any fix you know of?
Click to expand...
Click to collapse
The Play Store update should have also pushed Play Services, so yeah. Could we see your usage and also your app list/sync settings?
I'm in the same boat, even after the Google Play Store fix.
Seriously, we need usage stats.
Sorry, been working in home WiFi.
Hardly been using the phone since I still have my old Evo LTE and the battery is better on that.
Sent from my HTCONE using xda app-developers app
Sent from my HTCONE using xda app-developers app
Wifi used up 43% of 60% of your battery? That's like a quarter of your battery gone! Am I the only one who thinks that's weird? Can we see the graph and awake time etc? (Sorry for the trouble, but it's the only way we can tell)
---------- Post added at 11:44 AM ---------- Previous post was at 11:34 AM ----------
daltonroland said:
Sorry, been working in home WiFi.
Click to expand...
Click to collapse
Just wanted to ask, what does that mean? (Not trying to be negative in any way)
sauprankul said:
Wifi used up 43% of 60% of your battery? That's like a quarter of your battery gone! Am I the only one who thinks that's weird? Can we see the graph and awake time etc? (Sorry for the trouble, but it's the only way we can tell)
---------- Post added at 11:44 AM ---------- Previous post was at 11:34 AM ----------
Just wanted to ask, what does that mean? (Not trying to be negative in any way)
Click to expand...
Click to collapse
Well, in fairness for the last week or so I've been charging the phone and leaving it in my room. The screenshot was after like a day and a half in which a hardly used it and had WiFi on.
By working on home WiFi I meant talking to ISP and bumping up speeds, for the second time in a week.
I'll post the graph when I get home from work or early tomorrow as the phone has been unplugged for about 20 minutes.
Sent from my HTCONE using xda app-developers app
It won't hurt if you actually use it. Watching vids/playing games prevents blown up stats like that.
EDIT: Please, also include stats like screen time, awake time, cell reception, Wifi etc.
This was at work. I hardly use my phone at work fyi.
Sent from my HTCONE using xda app-developers app
Dropped 25 ish percent in 6 hours? What seems to be the problem?
With your usage, that would give you a day. I'm happy with 11 hours.
But with no internet connection and hardly any use. It concerns me because usually it would drop 5 maybe 10%. It was great on sleep.
Sent from my HTCONE using xda app-developers app
OK, now that I think about it, you're right. I remember getting more than 2 days on standby with absolutely no use (on wifi).
A day with that kind of usage is really not that good. It's weird because your stats don't show anything odd. I'd like to see some moderate to heavy usage stats though. The kind you say gives you 5 hours. That would help more.
Here you go. About 50% gone in about an hour of use (on WiFi) mostly on YouTube/Twitter or music with regular use of ATK.
Sent from my HTCONE using xda app-developers app
I'm having a serious battery drain issue with my Sprint One also, though I don't remember exactly when it started - it might very well have been that OTA update.
My battery drains when the phone is asleep. The phone will be dead in just over 24 hours from 100%, with less than one hour of screen usage. The integrated "usage" monitor shows that WiFi consumes this power , whether or not WiFi is in use. I have a paid task manager app that can track stats over time, and according to it, the processor appears to be running at ~15% constantly when the screen is off. I've tried disabling WiFi and having the phone sleep on just the cell network, to no avail. I first thought that perhaps the poor service at my house was causing it. However, I watched the battery drain at exactly the same rate when in an area with perfect coverage.
Here's the weird part - I tried airplane mode'ing my phone. Airplane mode doesn't seem to stop it. In fact, airplane mode seemed to accelerate the drain! I find it simply unacceptable that my phone will die like this with almost no usage.
I feel that the problem is not a rogue third-party app I have installed. I've used the "disable" option on Facebook, Twitter, and I've removed several other suspected apps. It makes no difference. I even suspected my task manager app; I tried removing it and looking at the integrated one, and there was no difference.
flyboy21141 said:
I'm having a serious battery drain issue with my Sprint One also, though I don't remember exactly when it started - it might very well have been that OTA update.
My battery drains when the phone is asleep. The phone will be dead in just over 24 hours from 100%, with less than one hour of screen usage. The integrated "usage" monitor shows that WiFi consumes this power , whether or not WiFi is in use. I have a paid task manager app that can track stats over time, and according to it, the processor appears to be running at ~15% constantly when the screen is off. I've tried disabling WiFi and having the phone sleep on just the cell network, to no avail. I first thought that perhaps the poor service at my house was causing it. However, I watched the battery drain at exactly the same rate when in an area with perfect coverage.
Here's the weird part - I tried airplane mode'ing my phone. Airplane mode doesn't seem to stop it. In fact, airplane mode seemed to accelerate the drain! I find it simply unacceptable that my phone will die like this with almost no usage.
I feel that the problem is not a rogue third-party app I have installed. I've used the "disable" option on Facebook, Twitter, and I've removed several other suspected apps. It makes no difference. I even suspected my task manager app; I tried removing it and looking at the integrated one, and there was no difference.
Click to expand...
Click to collapse
Check to make sure never auto turn on Wi-Fi is checked in Wi-Fi advanced settings. I was going to suggest poor reception since that kills my battery, but you mentioned trying airplane mode.
With screen off and nothing running, it's not surprising that Wi-Fi is the main battery drain. But it is too fast in my opinion too.
Sent from my HTCONE using Tapatalk 2
Is high performance Wi-Fi disabled?
Sent from my HTCONE using xda app-developers app

Battery issues are killing this phone for me

So, I really love this phone. Despite not being able to get it sim unlocked yet, I find that I'm even more satisfied with it than I expected. There's just one glaring issue: Battery drain, specifically at idle.
I have tried everything: Uninstalled/disabled all apps that I didn't need, used App Opps to turn off "keep awake" for just about everything that I could. Nothing works. Last night, I left it off the charger with 100% and 8 hours later, it was down to 50%. It loses 5-7%/hr at idle without doing anything at all. I'm in a high signal area. I tried charging it to full and turning off wifi. That had no effect either.
I'm seriously torn between wanting to return it because I can't even get through a single day on a charge and really wanting to keep it because the camera and screen are so awesome. I'm sure there will be an update down the road that will fix this and I don't think my device is defective. This drain definitely isn't normal.
Do a hard reset and see if that works.
If not take it in to tmobile, do a hard reset there And let it sit for 20 minutes and show them the idle battery drain.
Sent from my SM-G920T using XDA Free mobile app
jzero88 said:
Do a hard reset and see if that works.
If not take it in to tmobile, do a hard reset there And let it sit for 20 minutes and show them the idle battery drain.
Sent from my SM-G920T using XDA Free mobile app
Click to expand...
Click to collapse
I'm not wiping my brand new phone that has been doing this since I pulled it out of the box. A hard reset is not the answer to everything. There's definitely something wrong with the the software build.
It's my fault, of course. I should have added "in b4 do a hard reset" at the end of my post.
I know it sucks but try and tough it out. There is a massive issue relating to WiFi on this device right now. I am doing some testing but I think proof can be found in that when you turn off WiFi but WiFi calling was enabled in the dropdown you will fail to get cellular signal back at all. It will stay "Searching" all the time.
altimax98 said:
I know it sucks but try and tough it out. There is a massive issue relating to WiFi on this device right now. I am doing some testing but I think proof can be found in that when you turn off WiFi but WiFi calling was enabled in the dropdown you will fail to get cellular signal back at all. It will stay "Searching" all the time.
Click to expand...
Click to collapse
Yeah, I have tried leaving Wifi off completely, but I'm still draining pretty fast. The problem is, the phone is almost unusable for me like this because I can't even make it to the end of the day if I use it at all. And since I rooted, any update they release is going to be a pain to apply.
I blame 5.01, to be honest. The best thing Samsung could do is rush out a 5.1 update.
Same thing was happening to my phone out of the box as well, something was keeping it from deepsleep, did a hard reset, put all the same apps on. Now it sleeps like a baby.
I should note that battery life still isn't great but it does last me through a whole day, still getting high cell stand by drain.
Sent from my SM-G920T using XDA Free mobile app
Go to this thread http://forum.xda-developers.com/tmobile-galaxy-s6/general/discuss-battery-problem-t3071622
and self-diagnose and help us find a workaround and/or the source of the problem!
Glad to hear the factory reset seems to be working. Let's work together to try to narrow this down and not result to attacking each other
From the Moderator
OK People, Cleaned this chaos and trolling.......
Post respectfully or ........DO NOT POST........... easy
To your battery issues......... these issues are pretty much the same with all phones, so the fixes are pretty much the same\
Hard rest
Go into the menu and disable apps that are pinging GPS
Freeze apps that you do not need -if you are rooted then use titanium back up to freeze or other app that does the same - if you are rooted I would disable any updates from the Carrier or Samsung- that means disabling the patches/apps that control those.
Turn off WiFi and Bluetooth when not using it
Avoid leaving social media apps running in the background they can be battery hogs.......
This is what was recommended in 2010 ........... still pretty much good advice ........
The next person that posts disrespectfully or trolls will be met with an infraction
Keep kind and civil and ON TOPIC ONLY
Thanks ~~~ oka1
I have had zero problems with this phone's battery, but then again I always factory reset after an update. Got the 177MB update, installed, FDR, and butter ever since.
I get about 6 hours SOT with heavy use.
greyhulk said:
Yeah, I have tried leaving Wifi off completely, but I'm still draining pretty fast. The problem is, the phone is almost unusable for me like this because I can't even make it to the end of the day if I use it at all. And since I rooted, any update they release is going to be a pain to apply.
I blame 5.01, to be honest. The best thing Samsung could do is rush out a 5.1 update.
Click to expand...
Click to collapse
Dude, I was having the same exact problem with my S6. First, I disabled all of the apps I wasn't using. Next, I turned off wifi-calling. After that, I turned of VOLTE in the phone app. Last I backed up my music, pics, contacts, and sms's, and done a hard reset. I restored my stuff and completely charged it up. Now I am only loosing about 1% or less an hour at idle. I charged it up at 12, left it sitting and 3.5 hours later it's on 97%. That is quite an improvement for me as my S6 would be below 50% in the morning if I left it off of the charger over night for 6 or 7 hours......Just my two-cents to try and help. Good luck bro...
---------- Post added at 04:53 PM ---------- Previous post was at 04:49 PM ----------
dagodsha said:
Dude, I was having the same exact problem with my S6. First, I disabled all of the apps I wasn't using. Next, I turned off wifi-calling. After that, I turned of VOLTE in the phone app. Last I backed up my music, pics, contacts, and sms's, and done a hard reset. I restored my stuff and completely charged it up. Now I am only loosing about 1% or less an hour at idle. I charged it up at 12, left it sitting and 3.5 hours later it's on 97%. That is quite an improvement for me as my S6 would be below 50% in the morning if I left it off of the charger over night for 6 or 7 hours......Just my two-cents to try and help. Good luck bro...
Click to expand...
Click to collapse
I wanted to add that this didn't start happening to me until after the OTA was installed, before that, it was good to go for a whole day so the OTA does something to knock things off track.
Towle said:
Glad to hear the factory reset seems to be working. Let's work together to try to narrow this down and not result to attacking each other
Click to expand...
Click to collapse
How do you do factory reset? When I go into settings-backup and reset, hit reset- it gives me the warning and I proceed then the phone just shuts down, and nothing happens.
Method 2 - I power off, then hold vol up, home and power, until this logo comes up and then it goes black. I am strating to think that there is something wrong with my stock recovery.
thoughts?
Did you try to root at some point?
Is the issue with Cell Standby affected all T-Mobile Galaxy S6s or only a few?
ChristianBale said:
Is the issue with Cell Standby affected all T-Mobile Galaxy S6s or only a few?
Click to expand...
Click to collapse
All, from what I have seen. Even Pocketnow called it out in their review.
Sent from my SM-G920T
If you are rooted check out the app Greenify. I have been using it and it works great.
So I'm getting my phone tonight. Update and then hard reset before anything else right?
Sent from my SGH-T999 using Tapatalk
DC2CA said:
So I'm getting my phone tonight. Update and then hard reset before anything else right?
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
I would, yes.
Sent from my SM-G920T
greyhulk said:
I would, yes.
Sent from my SM-G920T
Click to expand...
Click to collapse
DC2CA said:
So I'm getting my phone tonight. Update and then hard reset before anything else right?
Sent from my SGH-T999 using Tapatalk
Click to expand...
Click to collapse
Haven't several people said that the Cell Standby issue only started to appear after the update? I would wait on the update a bit to see if you have any battery issues just for the sake of knowing. Then update and see if it makes a difference.
ChristianBale said:
Haven't several people said that the Cell Standby issue only started to appear after the update? I would wait on the update a bit to see if you have any battery issues just for the sake of knowing. Then update and see if it makes a difference.
Click to expand...
Click to collapse
It's not the update. The problem is VoLTE and WiFi calling. Turn those off and it goes away. I'm on the update and have no high cell drain since doing that.
Sent from my SM-G920T

Battery savings apps that work!

I added a few awesome apps to my rooted s6 and i've saved about 70% on my battery life.
Greenify (will put apps into Hibernation when you turn off your phone so they don't run in background)
Smart Wifi Toggle (will turn off your wifi automatically when you leave a hotspot you've connected to before like work or home. Can also turn off wifi when your phone sleeps)
AutoBluetooth (will keep bluetooth off unless a call comes in, your currently connected to bluetooth device, or your in your car travelling for handsfree)
just these 3 apps seemed to have doubled my battery life. just wanted to fyi so people could check them out.
Thanks for the ideas!!
marcux said:
I added a few awesome apps to my rooted s6 and i've saved about 70% on my battery life.
Greenify (will put apps into Hibernation when you turn off your phone so they don't run in background)
Smart Wifi Toggle (will turn off your wifi automatically when you leave a hotspot you've connected to before like work or home. Can also turn off wifi when your phone sleeps)
AutoBluetooth (will keep bluetooth off unless a call comes in, your currently connected to bluetooth device, or your in your car travelling for handsfree)
just these 3 apps seemed to have doubled my battery life. just wanted to fyi so people could check them out.
Click to expand...
Click to collapse
Do you adjust any settings in Greenify because I really don't see any battery savings using this app.
Developer Names ???
Please list developer names... for example, there are 15 autobluetooth apps in google play... Thanks!
steelersmb said:
Do you adjust any settings in Greenify because I really don't see any battery savings using this app.
Click to expand...
Click to collapse
you press the + sign and pick the apps you want to greenify and when screen is off it automatically closes them out.
its only awesome
Sent from my SM-G925V using XDA Free mobile app
elliwigy said:
you press the + sign and pick the apps you want to greenify and when screen is off it automatically closes them out.
its only awesome
Sent from my SM-G925V using XDA Free mobile app
Click to expand...
Click to collapse
Thanks, but I knew that...just wondering if there are any other settings that you change.
Can you give some real statistics like screen on time and time off the charger? That would be useful information. Thanks for the post.
Sent from my tablet
Genuinely it is wonderful performs. It is usually of great help for us all.
I swear these are a waste. Why run an app to manage your apps. If you just close out of programs and restart your phone every once in awhile your phone will be fine. It's the same thing as having a task killer app. Just open tasks on your phone and swipe away. That is how you manage your battery.
logitec33 said:
I swear these are a waste. Why run an app to manage your apps. If you just close out of programs and restart your phone every once in awhile your phone will be fine. It's the same thing as having a task killer app. Just open tasks on your phone and swipe away. That is how you manage your battery.
Click to expand...
Click to collapse
Though I might not be as harsh as you... I tend to agree. Greenify is basically like turning on the power saving option. Auto wifi might be good for convenience but it's not too bad to just turn it off when not in use. If I know I'll be away from a charger for a while I just turn on power saver and I'm golden.
Sent from my SM-G925V using XDA Free mobile app
One app. One solution: Tasker. Learn it.
Greenify did absolutely nothing for me, I uninstalled it.
eorsini said:
Though I might not be as harsh as you... I tend to agree. Greenify is basically like turning on the power saving option. Auto wifi might be good for convenience but it's not too bad to just turn it off when not in use. If I know I'll be away from a charger for a while I just turn on power saver and I'm golden.
Sent from my SM-G925V using XDA Free mobile app
Click to expand...
Click to collapse
This is true that I was a little harsh, but I wish people would know better. I have been using the samsung textiles for awhile and they are very convenient. I have one on my garage door opener on my motorcycle, one where I set my keys for my motorcycle, and one next to my shoes for when I go running. Best $5 I spent and it turns what I want on how I want it, for any situation.
or just use my rom.. u wont have to turn anything off because its all gone!
Sent from my SM-G925V using XDA Free mobile app
as soon as my phone is back from its vacation to plano, tx ill be uploading your rom to my phone. I agree that a good rom is all a battery needs. That's going back to the crackberry days too.
Thank you very much !
I was having bad mediaserver drain (on stock and other roms) until I turned off most system sounds including "call alerts" in the phone menu and the camera shutter sound. On the lookout for other offenders...
Sent from my SM-G925V using Tapatalk
I'm using Greenify as well but the change wasn't dramatic. In my observation I think roughly an hour or maybe two was added to my battery life. However I am not disappointed or anything as long as my phone can stand at least 12 hours with casual use.
AvaAdore said:
I'm using Greenify as well but the change wasn't dramatic. In my observation I think roughly an hour or maybe two was added to my battery life. However I am not disappointed or anything as long as my phone can stand at least 12 hours with casual use.
Click to expand...
Click to collapse
12 hours with casual use would be terrible lol. These screens are missing a gap in battery life since i was trying to flash a new build of my rom so it stuck in boot loop for at least 15mins then i had to odin to stock then reroot install flashfire and restore backup so easily an hour missed but havent needed to plug it in even this morning:
Sent from my SM-G925V using XDA Free mobile app
I have 9 accounts syncing, I leave screen set to auto, I leave everything on except for GPS. I get about 12-14 hours with 2 hours of screen time - a far, far cry from my Droid Turbo.
What are you doing differently elliwigy to stretch your battery out so far? Ive tried Greenify more than once but it has never impressed me. Maybe I'm not using it appropriately.
Sent from my SM-G925V using Tapatalk

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