Develop Bugs

Horrible Battery Life

It would seem that after I installed the AT&T update to dumb down thr search on my phone, my battery life has been terrible. Yesterday it was down to about 30% after only 4 hours of light use with the processes "Android OS" and "Cell Standby" taking up the most battery. I can't even get through the day with this phone. Some help would be much appreciated.

After any update, give it a couple days to level out. Until then, just carry an extra charger and plug in when you can.

The update was installed at least a week ago.

In that case, backup everything and do a factory reset when you have a fully charged battery.

Alright I'll give it a shot. I needed to do that anyway as my clipboard no longer works and consistently crashes. :/

I did a factory reset a few weeks ago and that solved it for me.

Do you have any specific methods for backing up a phone that isn't rooted? I've got nova backed up, but I would like to make sure everything else is too.

FlyinHi said:
Alright I'll give it a shot. I needed to do that anyway as my clipboard no longer works and consistently crashes. :/
Click to expand...
Click to collapse
Are you receiving push email? that was the major drainer for me. apparently the android email app has a bug.
Regarding clipboard...delete everything in data/clipboard; force close the 'test service' app and then restart your phone

FlyinHi said:
Do you have any specific methods for backing up a phone that isn't rooted? I've got nova backed up, but I would like to make sure everything else is too.
Click to expand...
Click to collapse
The best method would be to use titanium backup but since your not rooted I don't know what options you have except to use the google backup but that ain't to good since its only app data.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Hi all,
Since getting the phone from day one, I really never had a problem with the battery. Lately however, I've noticed a significant drain in battery over night. I tested the drain a few times over several nights, and even put my phone into "airplane" mode to help save battery.
Below are my results from going to sleep at 1:30am with 100% battery power and in airplane mode and waking up at 9:30am the next morning. I get a 12% decrease in battery over night for doing nothing over the course of 8 hours.
The only thing I've noticed differently is that Chrome is starting to use battery which is odd because I rarely use Chrome to begin with.
Any ideas to help this? What should I do?
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Death&co said:
Hi all,
Since getting the phone from day one, I really never had a problem with the battery. Lately however, I've noticed a significant drain in battery over night. I tested the drain a few times over several nights, and even put my phone into "airplane" mode to help save battery.
Below are my results from going to sleep at 1:30am with 100% battery power and in airplane mode and waking up at 9:30am the next morning. I get a 12% decrease in battery over night for doing nothing over the course of 8 hours.
The only thing I've noticed differently is that Chrome is starting to use battery which is odd because I rarely use Chrome to begin with.
Any ideas to help this? What should I do?
Click to expand...
Click to collapse
I had the same problem this morning chrome had like 26% and it showed no cpu use my phone was down from around 88% to 56% I know for a fact it was chrome so try un installing it.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Yeah I've noticed a huge jump in Android System usage since I flashed the UCLG1 update.
Currently
18h 27min on current charge
screen on 1h 22min
Android system = 51%

DudeWatsThat, thanks I'm going to give it a try and see if uninstalling Chrome changes anything. It just boggles my mind that in airplane mode over night it would drain the battery 12%

nest75068 said:
Yeah I've noticed a huge jump in Android System usage since I flashed the UCLG1 update.
Currently
18h 27min on current charge
screen on 1h 22min
Android system = 51%
Click to expand...
Click to collapse
That
ain't normal for sure.
Death&co said:
DudeWatsThat, thanks I'm going to give it a try and see if uninstalling Chrome changes anything. It just boggles my mind that in airplane mode over night it would drain the battery 12%
Click to expand...
Click to collapse
Yea its definitely a rare bug since Chrome wasn't even displaying cpu usage.
Sent from my GSIII

i second that problem about Chrome. I think it is a bug regarding the builtin flash code. my battery was great until i installed Chrome then it got really bad. I uninstalled Chrome and my battery life jumped up big time. huge different. too bad i really like Chrome but no go right now

Not sure if it's the same issue, but I had some problems with battery life in Chrome until I disabled Tilt Scrolling under Developer Options in the Chrome menu.

my battery life is great even after the update

Massive drain battery

Hi,
I have huge problem which hasn't occurred for the first time. I left my t520 with 92% and fell asleep. When I woke up it was at 40%. I had wifi off, and turned off wifi scanning when eve n off (which caused drain esrlier). According to wake lock detector the process which keeps running can be seen under. Please help me. In settings it only says that android process (97% usage of battery) has used CPU for 10h42mi and stood awake for 7h45min
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http://imgur.com/wNEhSFt
P.s. This tab is complete rubbish....

i would suggest go into settings....->battery. this should show u what is using your battery the most. if its a app delete it and see if it works. if not i would recomend doing a factory reset. this is what i do when something eats my battery alot.
foxracer89 said:
Hi,
I have huge problem which hasn't occurred for the first time. I left my t520 with 92% and fell asleep. When I woke up it was at 40%. I had wifi off, and turned off wifi scanning when eve n off (which caused drain esrlier). According to wake lock detector the process which keeps running can be seen under. Please help me. In settings it only says that android process (97% usage of battery) has used CPU for 10h42mi and stood awake for 7h45min
http://imgur.com/wNEhSFt
P.s. This tab is complete rubbish....
Click to expand...
Click to collapse

foxracer89 said:
Hi,
I have huge problem which hasn't occurred for the first time. I left my t520 with 92% and fell asleep. When I woke up it was at 40%. I had wifi off, and turned off wifi scanning when eve n off (which caused drain esrlier). According to wake lock detector the process which keeps running can be seen under. Please help me. In settings it only says that android process (97% usage of battery) has used CPU for 10h42mi and stood awake for 7h45min
http://imgur.com/wNEhSFt
P.s. This tab is complete rubbish....
Click to expand...
Click to collapse
Are you using Songza? It has big problems right now with battery drain. The deal is, is probably not the device. There is an app that is causing your issue.
Sent from my SM-T320 using XDA Premium 4 mobile app

The tab yesterday got from 30% to complete 0% with everything off (aeroplane mode, sync off etc.) just laying on the desk.
In settings its shows that battery is drained only by Android process.
I was thinking about what might be the cause and just realised that it started to happen just affter purchase of original samsung case for this tab. Is it possible that it had impact on one of the processes? Cause CPU is active almost all the time despite neither app running in the background... Maybe it's due to the magnetic thingy which wakes the screen?

foxracer89 said:
I was thinking about what might be the cause and just realised that it started to happen just affter purchase of original samsung case for this tab. Is it possible that it had impact on one of the processes? Cause CPU is active almost all the time despite neither app running in the background... Maybe it's due to the magnetic thingy which wakes the screen?
Click to expand...
Click to collapse
If the magnet is turning the tablet on, the screen would be on, and you can see that even with the cover of the case closed. So if you can see the screen if off, then I would say no, the magnet is not causing your drain problem.
Do you have Skype installed? This is a known battery drain problem on Kitkat as well. Its a bug within Kitkat itself, so maybe that is why its being reported as the Android process, and not one of your apps.

take a screenshot of you battery

redpoint73 said:
If the magnet is turning the tablet on, the screen would be on, and you can see that even with the cover of the case closed. So if you can see the screen if off, then I would say no, the magnet is not causing your drain problem.
Do you have Skype installed? This is a known battery drain problem on Kitkat as well. Its a bug within Kitkat itself, so maybe that is why its being reported as the Android process, and not one of your apps.
Click to expand...
Click to collapse
I don't think it's an app problem. I have only few apps installed (news reader, 2 games, fb and few random apps. I'll upload the screenshot when I'll be at home

Yep, my battery has started playing up. It likes to say it's 21% but then goes to 15, then between 2 and 4 within a couple of minutes. Sometimes runs on 1% for ages. But then dies, I turn it back on and it says 21%
Don't know if is root related. Our if I just need a hard reset. Going to try draining battery fully, then charging to full with device off
Sent from my SM-T520 using XDA Premium HD app

I also have never seen such a huge battery drain on any samsung or android device. For once, if you dont need it, go into settings and location services. Just disable it completly with that switch. This reduces the drain a lot, but is still way to high...
For me, it drains about 20% overnight with location on (completly offline) and about 10% without location services.

I have the same problem as well. It will continuously drain from 90-50 in minutes and then 50-15 and so on. 1% sometimes lasts for 30 minutes+ and when I restart it will be 15+% again. I thought it might be because of custom roms so I reset it back to stock many times and same problem. The only apps I have installed are adobe reader and es file manager.

JAIMEREYES said:
I have the same problem as well. It will continuously drain from 90-50 in minutes and then 50-15 and so on. 1% sometimes lasts for 30 minutes+ and when I restart it will be 15+% again. I thought it might be because of custom roms so I reset it back to stock many times and same problem. The only apps I have installed are adobe reader and es file manager.
Click to expand...
Click to collapse
boy, you're digging out a two year old thread!!
if you have such a battery drain you have different (unsatisfying) choices:
1. try battery calibration or other roms
2. throw you tab away + buy a new one
3. buy a new battery
4. accept it (like me)
5. wait until someone brings an awesome new rom which will give an awesome battery life
(sorry for hidden sarcasm but this tablet is just a big disappointment (for me))

I don't think you should throw away devices or buy new batteries without first analyzing what the problem could be. If you are rooted, download an app such as Wakelock Detector and BetterBatteryStats first, make sure there isn't some rogue app or process that is constantly running in the background. Also, if you are running the 8.4 (or perhaps it also works with the 10.1 / 12.1), check out the link in my signature on how to reseat your battery. Many people have found success with all kinds of battery problems.

High battery drain for a fresh reinstall 7.0 in idle for no apparent reason

Hello, people!
So, on 6.0.1. stock ENcrypted it was like this:
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about 5% lost per night
WiFi always on, whatsup, maildroid checking one imap mailbox for every 120 mins (set to wake up the phone), ok google OFF, now cards OFF, backup-ing OFF. Steady about 5% (4-6%) per night.
Now, I flashed factory image 7.0.0. everything stock. Then I flashed boot.img with disabled encryption and formated data and cache. Everything is as it is described above expect for the maildroid has NOT been even installed yet.
And that's what I get second night in a row (rebooted, cache wiped from recovery mode before leaving the phone):
23% eaten for doing ABSOLUTELY NOTHING!
What even worse, even android itself does not know what it was doing that it ate so much battery because the percentages does not add up for the whole drain.
After so many time invested into this phone for getting pure stock 7.0 unencrypted I just feel exhausted and want to throw this phone out of the window.
I'd appreciate a right direction for figuring out what drains the battery.

Yeah battery blows with nougat. Significant Google play services drain mainly bet scheduler. Had somewhat similar with MM but was able to really calm it down with Power Nap, bit since Xposed is not out yet for N....I'm nandroiding back to MM too.
Sent from my Nexus 5X using XDA-Developers mobile app

I downgraded to MM, and it became normal. The next day I missed the quick switching between the last two opened apps and I flashed N again))
Actually, this night it drained 8% what is kinda OK. What I additionally did was that I disabled under google account sync everything except for the contacts and calendar. Also I activated data saver and added only whatsup there. Wifi was on all night, but he phone did not seem to be waking up during the night at all, what is good because I didn't need it to be doing anything except for idling in case someone calls for emergency. So, I guess after some hard tweaking and disabling things I can cope with N, but mostly for the sake of awesome interface features.

Oversemper said:
I downgraded to MM, and it became normal. The next day I missed the quick switching between the last two opened apps and I flashed N again))
Actually, this night it drained 8% what is kinda OK. What I additionally did was that I disabled under google account sync everything except for the contacts and calendar. Also I activated data saver and added only whatsup there. Wifi was on all night, but he phone did not seem to be waking up during the night at all, what is good because I didn't need it to be doing anything except for idling in case someone calls for emergency. So, I guess after some hard tweaking and disabling things I can cope with N, but mostly for the sake of awesome interface features.
Click to expand...
Click to collapse
Just give it sometime...things are settling in...so a lot of time play services and stuff also go crazy...also apps are getting updated as well...give it a week or so...things will be better

I had this sort of issue on DP5 after a while but clean flashing MM stock and then re-OTAing to N seemed to fix it for me and I'm back at 5-6% overnight.
I honestly think there is a bug in there somewhere, whether its Google services or what i've no idea as my battery stats didn't seem to add up to the drain I was seeing. I had a similar weird drain before on MM too which a wipe sorted out.

give the system some time to settle in. i upgraded to N the day it came out and after giving android a few days i recognize no major difference in performance or battery life, even though things like Force Doze are incompatible now.

Sorry for off topic
How did you get that icon to the left of alarm icon in status bar (circular arc with + sign in the center)?
Thanks in advanced

ABSathe said:
Sorry for off topic
How did you get that icon to the left of alarm icon in status bar (circular arc with + sign in the center)?
Thanks in advanced
Click to expand...
Click to collapse
That's a new data saver feature being turned on. Setting -> Data usage -> Data Saver option there

I went back to MM not because of the idle drain, infact, I had no drain but the SOT sucks... Like 2-3 hours instead of 4-5 on MM. Maybe I'll wakt until Xposed it compatible again...

Hi, I don't mean to hijack the thread, but I posted about an issue with the screen, which is battery related as well. Actually when idle I have almost no battery drain (up to 2% per night). Could you take a look at this thread regarding the issue: http://forum.xda-developers.com/nexus-5x/help/nexus-5x-android-7-screen-battery-usage-t3463591
I have screenshots prepared (even worse than what I've already described), but as already mentioned I don't have enough posts in order to be able to post them here.
Is this an issue with the screen, battery or OS? The device is new with the OTA Nougat update.

How exactly did you downgrade to Marshmallow? I'd like to know because my 5X drains battery like crazy without doing anything on 7.0

Rage9one said:
How exactly did you downgrade to Marshmallow? I'd like to know because my 5X drains battery like crazy without doing anything on 7.0
Click to expand...
Click to collapse
Flash factory image from https://developers.google.com/android/nexus/images
Did that too but unfortunately for me it didn't fix my drain...

Android system battery drain

Hi there everybody
I've got a samsung a50 and have been seeing android system draining battery for 2 weeks
I've done factory reset and even flashed the whole firmware
But the issue is not gone
Disabled backup
Disabled sync
App preview messages
Cleared cache
Wiped data and cache google play services
What should i do?

Does anyone know why this happens? Currently on 21 percent of charge and android system consumed 18 percent. Is it normal?
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It might be normal and it might be not, if your phone mostly idle and you are not doing anything on it there always has to be something to use the battery. And since you are not using it obviously Android system and other services running in background will have high percentage, but it doesnt mean it's abnormal. If you would use it heavily the percentage would be probably like 5-10%.
So it really depends what u have been doing on a phone and how long it has been idling. For example if you just leave it idle for few days and never use or turn on the screen it could be like 50% or more and it would be absolutely normal, u see what i mean?

Alijjasghar said:
Hi there everybody
I've got a samsung a50 and have been seeing android system draining battery for 2 weeks
I've done factory reset and even flashed the whole firmware
But the issue is not gone
Disabled backup
Disabled sync
App preview messages
Cleared cache
Wiped data and cache google play services
What should i do?
Click to expand...
Click to collapse
k3lcior said:
It might be normal and it might be not, if your phone mostly idle and you are not doing anything on it there always has to be something to use the battery. And since you are not using it obviously Android system and other services running in background will have high percentage, but it doesnt mean it's abnormal. If you would use it heavily the percentage would be probably like 5-10%.
So it really depends what u have been doing on a phone and how long it has been idling. For example if you just leave it idle for few days and never use or turn on the screen it could be like 50% or more and it would be absolutely normal, u see what i mean?
Click to expand...
Click to collapse
I understand that but i have been using my phone and it has been idle a little time so i guessed there might be a problem.
Another thing is my phone is now showing learning usage patterns in battery stats because i reseted it a few days ago. Could it have anything to do with this drain?

Alijjasghar said:
I understand that but i have been using my phone and it has been idle a little time so i guessed there might be a problem.
Another thing is my phone is now showing learning usage patterns in battery stats because i reseted it a few days ago. Could it have anything to do with this drain?
Click to expand...
Click to collapse
Maybe, im not sure then sorry.

OK
So I checked my friend's device and he has got 19 percents for androud system. I think because the screen is removed in android 10 so it counts as screen, too.

Alright i managed to FIX this
Just i put my phone in charge overnight and it got fixed. I think it is because android system optimizes apps at that time. Now android system 0 PERCENT

Alijjasghar said:
Alright i managed to FIX this
Just i put my phone in charge overnight and it got fixed. I think it is because android system optimizes apps at that time. Now android system 0 PERCENT
Click to expand...
Click to collapse
Because its the stats since last full charge > 100% charge = 0% because its not off the batt.
If its apps that are draining the batt i think the best thing to do is reflash stock and go from there, if you've installed apps that you no longer use for example.
Turning on batt saving things, like auto screen brightness, make sure location/wifi is off when not in use, just try to limit how much power the system needs to function is always good practice.

InFam0us-1985 said:
Because its the stats since last full charge > 100% charge = 0% because its not off the batt.
If its apps that are draining the batt i think the best thing to do is reflash stock and go from there, if you've installed apps that you no longer use for example.
Turning on batt saving things, like auto screen brightness, make sure location/wifi is off when not in use, just try to limit how much power the system needs to function is always good practice.
Click to expand...
Click to collapse
No no no
I reflashed the whole firmware and it was still there
I fixed the issue myself so no need for your help

Question Extreme Battery Drain Issue During Phone Idle (Poco F3)

I've been getting really terrible battery drain while my screen is off / during the night since forever and this is one of the worsts.
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These are what I've tried so far:
Reinstalling the latest miui (12.5.2)
Clearing data and cache for the Battery and Performance app
Turning on Battery Saving mode
Many other little settings such as preventing phone from downloading updates at night
Turning off WiFi manually at night.
There has to be a culprit behind this, maybe I can rollback the miui update somehow? Thanks in advance.

Try netguard and limit which apps can access internet while screen is off. Also try running and completing the dexopt job once so it doesnt have to do it every time phone is idle.

friedwater1 said:
I've been getting really terrible battery drain while my screen is off / during the night since forever and this is one of the worsts.
View attachment 5381621
These are what I've tried so far:
Reinstalling the latest miui (12.5.2)
Clearing data and cache for the Battery and Performance app
Turning on Battery Saving mode
Many other little settings such as preventing phone from downloading updates at night
Turning off WiFi manually at night.
There has to be a culprit behind this, maybe I can rollback the miui update somehow? Thanks in advance.
Click to expand...
Click to collapse
learn how to live without those trash apps, google services, social media.... they all constantly use ur phone without permission.

i23u8 said:
Try netguard and limit which apps can access internet while screen is off. Also try running and completing the dexopt job once so it doesnt have to do it every time phone is idle.
Click to expand...
Click to collapse
Thanks I've done it and will see how it goes.

It seems like your Phone isn't fully entering Deep Sleep, could you show entire Battery Usage Statistics? Also do you charge your phone to 80% to save Battery Life or to 100%?

Mine was same. A soft-reset solved the problem. Hold down the power button (when the phone is open) and keep holding it until it restarts. Try a few times if it doesn't solve the problem.

friedwater1 said:
I've been getting really terrible battery drain while my screen is off / during the night since forever and this is one of the worsts.
View attachment 5381621
These are what I've tried so far:
Reinstalling the latest miui (12.5.2)
Clearing data and cache for the Battery and Performance app
Turning on Battery Saving mode
Many other little settings such as preventing phone from downloading updates at night
Turning off WiFi manually at night.
There has to be a culprit behind this, maybe I can rollback the miui update somehow? Thanks in advance.
Click to expand...
Click to collapse
I have a possible solution which worked for me, ping me in telegram I will send you that
Yash
Coca-Cola ❌ | Open-Cola ✅
t.me

Ravuri yaswanth said:
I have a possible solution which worked for me, ping me in telegram I will send you that
Yash
Coca-Cola ❌ | Open-Cola ✅
t.me
Click to expand...
Click to collapse
Thanks for replying such an old thread!
Anyway, it was resolved and the culprit was the SIM card. Not sure if it was a 3g SIM (not my sim, so can't confirm) or that it was faulty, it was sucking a lot of battery which explains why it was fine when I turned on Airplane mode at night.
I hope this helps someone out there.

friedwater1 said:
Thanks for replying such an old thread!
Anyway, it was resolved and the culprit was the SIM card. Not sure if it was a 3g SIM (not my sim, so can't confirm) or that it was faulty, it was sucking a lot of battery which explains why it was fine when I turned on Airplane mode at night.
I hope this helps someone out there.
Click to expand...
Click to collapse
friedwater1 said:
Thanks for replying such an old thread!
Anyway, it was resolved and the culprit was the SIM card. Not sure if it was a 3g SIM (not my sim, so can't confirm) or that it was faulty, it was sucking a lot of battery which explains why it was fine when I turned on Airplane mode at night.
I hope this helps someone out there.
Click to expand...
Click to collapse
friedwater1 said:
Thanks for replying such an old thread!
Anyway, it was resolved and the culprit was the SIM card. Not sure if it was a 3g SIM (not my sim, so can't confirm) or that it was faulty, it was sucking a lot of battery which explains why it was fine when I turned on Airplane mode at night.
I hope this helps someone out there.
Click to expand...
Click to collapse
Did you got any solution? Tell me if you got plzz...