Develop Bugs

[Q] Battery life poor since JB

Hi everyone,
My One X used to have brilliant battery life. I didn't turn on the screen that often throughout the day, but I was able to regularly check the news, send and receive texts, make a few calls and - crucially - keep my Wifi on for the entire day. With this setup, I was regularly getting 4 or 5 days of usage without having to charge my phone. However, as soon as JellyBean came along as an official update, I grabbed it... since then, I'm lucky if I get a day and a half out of it before I need to plug it into the wall.
I'm not running any custom ROMs: just whatever I get through official O2 OTA updates. Battery usage says that 36% of my drain is due to Android OS, with another 20% due to Maps. The rest are tiny, only 2 to 5%. Now I understand that a new version of Android might make some new demands on the hardware, but from what I heard, the update was supposed to improve battery life if anything. Even with the new Power Saver feature on, the difference is minimal, with only a few hours standby time gained overall.
Can anyone suggest anything to remedy this, or is this fairly normal? It's not world-ending and perhaps I was just really lucky to get 5 days of use in the first place, but thought I'd ask the experts before I grin and bear it. Thanks in advance for any help or advice.

19 hours and 40 minutes into this usage cycle, I've got 57% remaining. So it's shaping up to be about 40 hours of usage, down from 120 at its peak. Right now, it's also saying that Android OS has used 99% of my battery... and nothing else is on the list.
Does no-one have any idea what's going on?

Did you make an hard reset when you updated your phone?
This is why when you upgrade your phone to a newer Android version it is better if you perform a hard reset

AW: [Q] Battery life poor since JB
I suffer(ed) also under heavy drain due to maps since update to JB. But I'm convinced it's cause of Google Now. Disabled it yesterday and will check whether it gets better or not. Try disabling gnow and see if it gets better. I also had issues with gsam battery monitor in case you use this.
Sent from a Venom-powered Beast

This is my last charge 3 half screen time isn't bad.
play tekkit lite? come join my server for some fun. 193.35.58.2:25575
Sent from venom injected one x

Would you consider rooting because custom roms like blade have great battery life
Sent from my HTC One X using xda app-developers app

k-c-0 said:
I suffer(ed) also under heavy drain due to maps since update to JB. But I'm convinced it's cause of Google Now. Disabled it yesterday and will check whether it gets better or not. Try disabling gnow and see if it gets better. I also had issues with gsam battery monitor in case you use this.
Sent from a Venom-powered Beast
Click to expand...
Click to collapse
Thanks for this. Your suggestion got me checking for other people having issues with Google Now and battery life. I disabled it as you suggested and I'm definitely seeing an improvement. It's still not as good as it was, but I think I might be able to squeeze more than two days out of it now.

Do you have stock rom? Because I've just upgraded to JB yesterday and flashed a custom rom, and since then my battery is like 3 times more powerful.

You should definitely switch to a custom rom... Ever since I upgraded to JB I've seen a massive improvement in my battery life.. From barely making it through the day to almost 2days of my typical of usage.
Google Now does seem to kill battery as it polls the Google maps app a lot.. So I usually open task manager to make sure it isn't running in the morning background.
Sent from my Nexus 7 using xda app-developers app

Battery Life AFTER Lollipop Updaate

has anyone else seen a dramatic decrease in battery life after the update? My battery went from lasting all day, to now Im lucky to get 5 hrs before its down to 30%..... overall ive seen a drastic decrease in overall performance... has anyone else expierenced worse performance?

athack said:
has anyone else seen a dramatic decrease in battery life after the update? My battery went from lasting all day, to now Im lucky to get 5 hrs before its down to 30%..... overall ive seen a drastic decrease in overall performance... has anyone else expierenced worse performance?
Click to expand...
Click to collapse
keep calm and factory reset. That should fix the stability and battery life.

LegoFarmer said:
keep calm and factory reset. That should fix the stability and battery life.
Click to expand...
Click to collapse
No better no worse, my battery life has always been great. Example today, unplugged at 7 am , no recharges during the day and it's at 55%.
I used the phone , surfed and checked my texts and email all day

athack said:
has anyone else seen a dramatic decrease in battery life after the update? My battery went from lasting all day, to now Im lucky to get 5 hrs before its down to 30%..... overall ive seen a drastic decrease in overall performance... has anyone else expierenced worse performance?
Click to expand...
Click to collapse
You are not alone. I used to be able to go a couple of days on a single charge. Now I'm struggling to make it 12 hours on a single charge.

I was getting almost 2 days when I first started using the note4. After a few months passed I noticed battery life dropping pretty fast throughout the day. Factory resets helped a little, but not much. Lollipop upgrade plus factory reset has seemed to help. I get through a full day now with light browsing/gps(maps)/gaming and fair amount of spotify streaming. Nothing close to what I was getting fresh out of the box.

I am experiencing similar battery issues. Used to charge my phone once every two days. Now, I carry my charger attached to my hip like a feeble iPhone hipster.

I'm also having issues!
I also have seen a large decrease in my battery life since updating to Lollipop. I tried factory resetting twice and nothing seems to help. I was getting 8-9 hours of screen on time on Android 4.4.4 but now I'm somewhere between 4.5-5.5.
Also my note 4 will occasionally get really hot after just normal web browsing. I'm very disappointed in the update. However, performance seems to be a little better....but it wasn't ever really an issue.
I just read an article on gsmarena about the international version of the Samsung galaxy note 4 receiving a firmware update.....hopefully that fixes the problems we're having. We just have to wait for Verizon to send out the update. (Which will probably take a couple of weeks to months).
One thing to keep in mind is that we (those who are having these issues) need to make sure that we contact Verizon in order to make sure that they acknowledge the problem and send out a fix ASAP.

I'm having the same issues since the update...battery sucks. What's the easiest way to inform verizon?

Passpoint Wi-Fi
Noticed that there is a "new" Passpoint Wi-Fi feature that will automatically connect to certified access points.
This is ON by default after the Lollipop update. (Settings >> Wi-Fi >> Advanced)
I just turned it off to see if battery life improves. Never been a fan of automatic Wi-Fi connection features.
Checking on the Lock Screen Weather/Location Update next.

My Note 4 has the battery drain issue now after updating last night to Lollipop but am giving a couple days to see if any improvement. I did do a battery pull after all the updates (system and apps) and it did seem to help.

My Note originally for a couple of days had the battery drain issue. However, after uninstalling the Google Fit app then a reboot the battery life has been great.
Maybe try a battery pull for 20 seconds as well.

dustball3k said:
I'm having the same issues since the update...battery sucks. What's the easiest way to inform verizon?
Click to expand...
Click to collapse
I think the easiest way to contact Verizon is just by talking with the technical support. Good representatives are hit or miss but Verizon's are generally good.
If you contact them just explain the issue that you are having and they should be putting it on record saying that multiple people are calling in concerning a battery problem. They may have even figured out the culprit (s) and/or found a fIx.
I'm going to be calling today.

Lolipop Memory Issues Poll: T-700

I can't make a poll thread from Tapatalk I guess, so I'm just looking for comments.
I got the notice to download the 5.0 update today. I'm hesitant to do so due to the many issues reported for other devices. I have a 2012 Nexus 7 that had serious issues until google released the update to 5.1. I do not want to repeat that experience (it took months of waiting).
I have the US version of the 8.4 inch Tab S.
For those of you who have installed the update, have you noticed any issues, specifically memory related? I am not looking for opinions about whether you like Lolipop, so I would request only comments regarding what differences, if any, you notice in how the tablet is running after the update.
Signature edited to appease the OCD's

I have the U.S. Tab S 8.4 WiFi and updated to Lollipop. It's running smooth and snappier than KitKat. I haven't noticed any memory issues with it. Battery life is good so far, on par with how it was under KitKat for me.

Thanks. I would hope samsung would make certain the update would not cause this problem, but you never know! It's pretty well documented at this point.
Signature edited to appease the OCD's

Mine reboots constantly. Garbage.

So we've got one person who updated without problems and one who is having reboots. Who else has taken the update and what experience did you have?
Also, does anybody know what the options are to downgrade if it turns out that 5.0 does have a lot of problems?

No problems on my S 8.4. I also have Touchwiz Lollipop (5.0.1) on my Galaxy S4 with no problems. I read somewhere that the memory leak issue was only a problem on AOSP builds, not OEM (Samsung, HTC, etc) releases. I don't know if that's true. I'm 100% happy with Lollipop on my S 8.4.

all good here. like the changes from lollipop and touchwiz doesn't seem as bad from what people make it out to be. wish you could uninstall some apps tho.

Originally, I had a 2012 Nexus 7. After installing 5.0, it became unusable. I tried almost everything I read to no avail. Actually, it had started slowing down and having and having random app crashes b4 that, but it got much worse after installing 5.0
I gave up on it and bought the Tab 8.4, which I'm loving. Several weeks later, I went back to the Nexus 7 and used Wug's Toolkit to wipe and install 5.1.1. That has actually seemed to fix my issues with that tablet. Now I'm thinking perhaps I didn't need to get the Samsung, but oh well. I like the larger screen (I always said tablets should come in 8 inches, not 7), the rear camera, and the responsiveness. I'm keeping it!
Because of my negative experience with 5.0, I was hesitant to install this update. However, I installed it yesterday and so far (after 24 hours), it seems to be fine. I like being able to see my notifications on the lock screen again. It still appears to be snappy. It has not been long enough for me to judge battery time yet. So far it looks good.
Signature edited to appease the OCD's

killerb777 said:
all good here. like the changes from lollipop and touchwiz doesn't seem as bad from what people make it out to be. wish you could uninstall some apps tho.
Click to expand...
Click to collapse
Why not root it? Then you could uninstall anything you want to.

After the update it was all good with my tablet, smoth and fast.
Now it's getting worse, Nova launcher is always crashing, sometimes it reboots by itself, lag came back and some apps freeze...
I hope that Samsung release a new update.

Does the OTA update work with root installed?, I have the T800.
John.

woody1 said:
Why not root it? Then you could uninstall anything you want to.
Click to expand...
Click to collapse
There's some apps/games that don't work on rooted devices so I had to keep it stock.

I updated OTA to 5.02 and had no problems. Tab is as quick as before.
I noticed a slight increase in ram usage (from around 1400 to 1700 mb) Now after medium use it hangs around 2GB. Until now I didnt see a problem with that.
Battery usage seems a little better (but thats alway subjective) I had a problem that the charging percentage went from 85% to 100 % in a couple a minutes. Now, connected to USB it charges 1% every 5-6 minutes. and it does so also from 85%-100% There are some slight things I dont like about 5 but again thats to subjective.
One of the things I loke is that its now possible to switch of notifications per app. I hated apps that which me "Goodbye and hope to see you soon, sleep well, say hello to your wife"

HANSB57 said:
I updated OTA to 5.02 and had no problems. Tab is as quick as before.
I noticed a slight increase in ram usage (from around 1400 to 1700 mb) Now after medium use it hangs around 2GB. Until now I didnt see a problem with that.
Battery usage seems a little better (but thats alway subjective) I had a problem that the charging percentage went from 85% to 100 % in a couple a minutes. Now, connected to USB it charges 1% every 5-6 minutes. and it does so also from 85%-100% There are some slight things I dont like about 5 but again thats to subjective.
One of the things I loke is that its now possible to switch of notifications per app. I hated apps that which me "Goodbye and hope to see you soon, sleep well, say hello to your wife"
Click to expand...
Click to collapse
So, if I understand, you're saying that you're seeing higher RAM usage with 5.0, but it hasn't caused any problem? Also, for me charging on KitKat is very fast. Does your tab charge as fast on Lollipop as it did before?

woody1 said:
So, if I understand, you're saying that you're seeing higher RAM usage with 5.0, but it hasn't caused any problem? Also, for me charging on KitKat is very fast. Does your tab charge as fast on Lollipop as it did before?
Click to expand...
Click to collapse
that is correct,. i see higher ram usage but no ill effect
on usb it charges approx the same kitkat and lollipop 1.% every 5 6 minutes i hardly ever charge on charger but that is a lot quicker

After three days I agree with HANSB57. However, my opinion is completely subjective. I have not measured anything.
Signature edited to appease the OCD's

Unstable after OTA lollipop update on Samsung Tab S 8.4
HANSB57 said:
that is correct,. i see higher ram usage but no ill effect
on usb it charges approx the same kitkat and lollipop 1.% every 5 6 minutes i hardly ever charge on charger but that is a lot quicker
Click to expand...
Click to collapse
I also experience frequent reboots using certain apps or even general Web browsing. I just restored to factory default so I will see if things improve. So far I've already experienced one crash after doing this. Hopefully a follow up update is in the works.

MM update has ruined battery life and bluetooth, has it happened to you?

I updated my phone (completely stock) to MM as soon as it came out. The first thing I noticed was my battery life became terrible. I gave it a few days, still sucked. I did multiple hard resets and cleared system cache, still sucked. Then a couple weeks later another massive update. I figured it was a fix for all of the initial problems. Not only did it not fix it, it made it WORSE! More hard resets, still the same crappy battery life. MM has been the worst update I've experienced on Android so far, and that is saying a lot. Is it only me or does every update seem to get worse and worse. Dare I say its time to look into a new operating system? This is ridiculous....
Now, if I leave bluetooth on, it becomes the number 1 battery drain and will kill my battery in a few hours even if it isn't connected to anything (this NEVER happened in any previous update). I made the mistake of buying another battery thinking it would help. Nope, battery life still sucks.
If I have bluetooth on and I connect to my car, it works fine but if I turn my car off and go into my office, the bluetooth symbol still shows I am connected even though I am not.
I checked the Verizon community forum and many others are reporting the same thing. So far VZW has blown everyone off and said "have you tried our battery saving tips".....What a bunch of BS!
Who else is having these problems and what can we possibly do about it?

thegipper said:
I updated my phone (completely stock) to MM as soon as it came out. The first thing I noticed was my battery life became terrible. I gave it a few days, still sucked. I did multiple hard resets and cleared system cache, still sucked. Then a couple weeks later another massive update. I figured it was a fix for all of the initial problems. Not only did it not fix it, it made it WORSE! More hard resets, still the same crappy battery life. MM has been the worst update I've experienced on Android so far, and that is saying a lot. Is it only me or does every update seem to get worse and worse. Dare I say its time to look into a new operating system? This is ridiculous....
Now, if I leave bluetooth on, it becomes the number 1 battery drain and will kill my battery in a few hours even if it isn't connected to anything (this NEVER happened in any previous update). I made the mistake of buying another battery thinking it would help. Nope, battery life still sucks.
If I have bluetooth on and I connect to my car, it works fine but if I turn my car off and go into my office, the bluetooth symbol still shows I am connected even though I am not.
I checked the Verizon community forum and many others are reporting the same thing. So far VZW has blown everyone off and said "have you tried our battery saving tips".....What a bunch of BS!
Who else is having these problems and what can we possibly do about it?
Click to expand...
Click to collapse
I don't know. Most people are reporting good battery life with Marshmallow. I'm on Jasmine 6.0 which is essentially a stock ROM, little debloating, and my battery life is great. For what it's worth, my battery is relatively new. I also use the app "Greenify."

douger1957 said:
I don't know. Most people are reporting good battery life with Marshmallow. I'm on Jasmine 6.0 which is essentially a stock ROM, little debloating, and my battery life is great. For what it's worth, my battery is relatively new. I also use the app "Greenify."
Click to expand...
Click to collapse
I also have a brand new battery and it didn't matter, still sucks.
I'm also using greenify and it isn't helping at all. I am curious how many that are reporting good battery life are on a fully stock Note 4.
Also, what about your bluetooth? If you leave it on does it become the number one drain on your battery? It happens on both my wifes phone and mine (both stock). Several others on the VZW forums are reporting the same thing as our phones.
Annoyed as hell to say the least.

Battery problems?

I know, our device has really great battery life and I don't have anything to complain about that, but a friend of mine just got himself a new phone and his values make me a bit jealous and most of all: surprised and stunned.
He got himself a Xiaomi Redmi Note 4 (SD 625 variant, MKT variant really sucks), it has the same processor, same display and not even 700 mAh more (4100 mAh) and he got with some "dev rom" (made by Xiaomi, seems to just be the beta of that ugly MIUI 9, based on Andorid 7.0) 6h of SOT, doze seems to haven't really kicked in in that time. in their forum in the SOT thread I see people getting normally about 8-10 with up to over 12 h of SOT, most of them on stock ROM without any additions. And I'm quite irritated about that huge of a difference with not that much more battery. And he seems quite convinced that it's not on the cost of performance, you should notice that quickly on such a heavily skinned ROM.
Now my question is: how in hell is that even possible? I mean our devices seem quite comparablewith just a slight bump in battery but near-stock AOSP Android against pretty much an iOS clone. Does anyone have any idea what could cause that big of a difference? And if it's software based could that be done on our device? Because my experience and from different posts our device lasts about 5-6 h normally.
I mean I'm already lucky about my 2 days of usage with up to about 2.5 days on some weekends where I have a lot of stuff to do. But I wouldn't mind a bit of extra. But my biggest problem with that is as simple as: how? I could really use some explaination right now...

I don't have issues with device.. stock 7.1.1 with dec.patch, unlocked bootloader, with latest magisk. Also installed greenify.

Then you are one of very rare cases. My experience is about half of that.
And I also meant on stock ROM, without any modifications. So I don't know which apps you greenified, but that was not the point. I use Greenify too but more for apps that aren't supposed to run constantly in background when I only use it very seldomly.

The norm for this phone is 8+ hours SOT. Sometimes I get 10 and a few have had up to 12. Unless you're gaming 8 should be easy. 5 hours means something is wrong with your phone hardware, you have a rogue battery eating app or you're gaming. I rarely charge my phone over the weekend even when I use it a lot.

Well, neither of that is the case and I rarely see people claiming more than 6h of SOT

So the answer to your question is, it's the wrong question. The question should be, why does my battery not last very long and what apps or usage causes me to have such poor battery life? Compared to the Redmi Note 4 the Z Play is exactly where it should be.
Here's a link to the SOT thread: https://forum.xda-developers.com/moto-z-play/review/screen-time-t3643959
gsmarena battery life test 100h endurance rating: https://www.gsmarena.com/battery-test.php3?idPhone=8310#show
Here's an app to help diagnose battery condition (Accubattery): https://play.google.com/store/apps/details?id=com.digibites.accubattery&hl=en
also betterbatterystats is really helpful.
I sincerely hope you get it sorted out!

Well, gsam isn't detecting any app that's off even with root so I don't think there is any. I installed that AccuBattery app, let's see what it has to say

Removed because of ****ty q&a system...

Oh, and another thing I noticed: I get very randomly reboots, and every time the battery percentage drops massively. Just had a 30% drop. And after the reboot the battery percentage seems like frozen. Now I rebooted and plugged in the cable and got 44% again... No fast charging. Do that detection seems very off
Motorola forum isn't helpful at all. Clearing cache and dalvik didn't change anything and running around for a week in secure mode (that's how random they mostly are) or even doing a factory reset without restoring apps is out of question for obvious reasons.

That's pretty weird. Did you try a factory reset and after restore your apps? There's not a lot you can do if you're not rooted, but you shouldn't need to do much anyway on stock rom.
Only other option is full RSD lite OS restore as a last resort.

I am rooted for long, that's why I use Greenify. I know it also works without but then it's a joke. As RSD lite is, it just refuses for everyone to detect anything on Windows 10.
Factory reset is out of question for the moment, it takes way too long to do it properly (with titanium and NANDroid backup first) and I won't have that much time probably for the whole of this month. Otherwise I would most likely already have went off to the next best custom ROM since Motorola just can't get their **** together and still work on 8.0 in test for 2.5 month with searching testers for another one.
I think the next thing I'll do is to try the good old battery calibration, just have to find the file storing the statistics. I know many say that won't work but that's rubbish, it worked for me already a few times

Update: no, no change. Don't know if that funky battery percentage bug on random reboots still happen since I haven't had any again yet, but they come too random and unpredictable.
And that AccuBattery just proves to be worthless. It tries to estimate the rest capacity, but then it even fails to detect original capacity by 500 mAh. The battery sucker stats are also unrealistic. It puts chrome first with 10%, while GSam with root puts it 5th at 4.6% after kernel, Spotify, Android system and fight services. Android itself even puts it 9th with screen, phone idle, cell standby, Android OS and Bluetooth in-between.
So let's see what happens first. Motorola releasing 8.0, which I will flash through the .xml.zip, this time using flashfile.xml which should force a factory reset... Or me finding the time to switch to a custom ROM
Edit: so I got another one, bit this time no crazy battery drop. But the other times I killed of the soft reboot sequence because Magisk can have some problems with that. This time I didn't

Yesterday I was finally able to do the factory reset since those darn random reboots became too annoying and Moto's support is had just the most ridiculous ideas... In the worst way.
Either way, now OTA looks better, let's see how it will turn out in the next days