My tablet not only freeze and restart, not only work like a tablet with 256mb ram, it also was unusable due to battery draining. 7%/hour in idle.
To fix this issue, everytime you power on the tablet, go to applications, in ejecution, and stop all Asus process and services possible, it only should survive one process that is not stopable. Have to do this everytime you power on the tablet but it stop battery drain. It may work in others models too.
If you are root you can use an app to do it automatically or try uninstalling the asus stuff
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When my phone is doing nothing, sitting in my pocket, it'll drain a decent percentage. I was at work today, and from 11-2 it drained 25%, and I didn't use my phone AT all. I have good coverage in my area, and was at 0% time without a signal. I dont use app killers at all, I dont think I should baby my phone, it can handle it self.
I just find it to be really frustrating when my phone is draining battery when im not even using it. I cant trust it to hold a charge.
I checked the partial wake usage, and under "internet" theres about half a millimeter of blue, then Android System which has even less, about a hair's width of blue.
What can the phone possibly be doing?
To be honest I have the same issue and I would like to know how to properly address this without rooting, hacking or anything that involves voiding my warranty in any way.
-> thanks
There are two internal processes that can consume processing resources and suck the life out of batteries. These are common issues for many users. They are the "suspend" and "init" processes.
You can determine which might be causing you grief, if either, by installing Watchdog Lite from the Market. Configure its preferences to include, monitor, and display phone processes to be able to check on these possible runaway processes.
If it is the "init" process causing difficulty, you can eliminate it by enabling USB Debugging in Android Settings. Just having debugging enabled is enough to eliminate it.
If it is the "suspend" process causing difficulty, you will have to reboot the phone. But the problem will go away, at least for some time, until the phone enters a state that causes the problem to reoccur.
Huge battery drain when tablet is "sleeping" - probably because "bluesleep"
Hello,
I have problem on my N7 with large battery drain.
I had this issue witch Stock ROM, now I tried to root stock ROM (4.4.4) and install Greenify, but battery still dies after 2 days of no usage.
I tried to charge it fully, reboot it, cleared cache and dalvik cache, and put it to "sleep". After one night, 40% of battery was gone.
It seems that my N7 is not going to "deep sleep" for some reason.
So I tried to install numerous of apps to find what app is responsible for this. None was successfull, until I tried BBS.
In attachment, you can find BBS dumpfile. But it seems, there is some "bluesleep" kernel wakelock, which is responsible for all my troubles. Unfortunatelly, I dont know what this process is. Or am I reading dumpfile wrong and some other app/process is responsible for this huge battery drain?
I also attached screenshot from standard android battery statictics, which shows, that "Android OS" is preventing tablet from sleep.
Is there some way to fix this issue? Tablet worked normally for 1.5 year, but in last months is unusable, because it has dead battery everytime I want to use it.
Thanks for advices.
I would imagine bluesleep wakelock is related to bluetooth. Do you have BT on and/or connected to anything using BT?
If so try turning it off and see if it persists.
Yes, I use Bluetooth for my Jawbone UP24 sync. But I have this band only for a week. Extreme battery drain already was there before I have got UP24. In these times I had bluetooth turned off all time. So I dont think this is main reason.
I turned off BT. Lets see what happens in the morning.
UPDATE: You were right. It is bluetooth. When I turn it off, tablet is most time in deep sleep.
So probably rooting and installing greenify worked, but in meantime, I started using UP24 and Bluetooth on tablet.
I will try if situation is better with some AOSP based ROM. I did not wanted to flash another rom (than Stock), but I guess, there is no other way. Even clean Android on Nexus device is not usable with comfort...
Hi there, for the last week or so, with no new apps being downloaded prior to issue, I have noticed a significant battery drain by Android OS (39%) and inside it showed incredible Keep awake time of 16h 50m (though the phone screen is off). For reference, the screen time (25% battery usage) so far is 1h 31m. I have installed and given root access to GSam Battery Monitor (its root companion is activated too). The program indicates that Kernal (Android OS) is taking up my space but I was hoping instead it would be able to give the direct app that is eating up my battery. I have tried restarting it twice and after letting the battery run off completely and fully charging it before turning it back on.... no dice.
S4 - SGH-i337M (jfltecan/jflte)... verified root... Android 4.4.2
SlimROM-4.4.2.build.4-OFFICIAL-3650
Build number: slim_jfltecan-userdebug 4.4.2 KVT49L 3650 test-keys
Kernal: 3.4.82-KT-SGS4-gb0a91ad
Recovery is via TWRP
I know there may be suggestions to turn off GPS, WiFi, etc, etc... but I'd rather not do that due to the fact the phone life was absolutely fine w/ them on... I'd like to fix the root of the problem instead of working around it. I haven't made any changes to phone settings for a month. Reformat is a last resort but want to exhaust options prior to.
Any help appreciated, thanks.
It seems that the only way to have figured it out is by disabling individual apps and see if there is any improvement in battery life and drop in Android OS wake time and battery use.... After checking the 4th app of possibility, it seems like KiK was the culprit. Just going to remove the app as I haven't used it much. Maybe an update for the app occurred causing this to happen. One work around for those who want to keep the app that's causing the issue and minimize the battery drain, you could just go to the app's system settings and do a Force Stop and the program will be off and then turn the app back on whenever you need it and then turn it off again via Force Stop. It's a app issue, not anything you can really do about it except downgrade or uninstall the app.
The s4 i337m forum is here: https://forum.xda-developers.com/galaxy-s4-att
My husband got a Tab A 10.1 last year for Christmas and uses it mainly for streaming music on YouTube and surfing marketplace on Facebook. While I know both apps are battery hogs, the battery drain is still unreal. Just having the tablet on the "home" screen for 5 mins will drain the battery 14%.
I have either removed or disabled all the apps not needed, have optimization setting set (says battery life is over a day haha), brightness is low and on auto, and also have an auto app kill installed to stop apps in background. Have gone through and removed background permission and set allowed open background to only 2.
Short of rooting, which I prefer to not do with the lack of options, is there anything else that I can do here? Is this a common issue with this tablet?
kitty035 said:
My husband got a Tab A 10.1 last year for Christmas and uses it mainly for streaming music on YouTube and surfing marketplace on Facebook. While I know both apps are battery hogs, the battery drain is still unreal. Just having the tablet on the "home" screen for 5 mins will drain the battery 14%.
I have either removed or disabled all the apps not needed, have optimization setting set (says battery life is over a day haha), brightness is low and on auto, and also have an auto app kill installed to stop apps in background. Have gone through and removed background permission and set allowed open background to only 2.
Short of rooting, which I prefer to not do with the lack of options, is there anything else that I can do here? Is this a common issue with this tablet?
Click to expand...
Click to collapse
If you are having that kind of battery drain just on Home screen, without the music or facebook apps running, either the battery is bad or you have some kind of malware. Have you tried factory reseting the tablet? Or running malware detection app?
lewmur said:
If you are having that kind of battery drain just on Home screen, without the music or facebook apps running, either the battery is bad or you have some kind of malware. Have you tried factory reseting the tablet? Or running malware detection app?
Click to expand...
Click to collapse
I have run the built in tablet scan for virus and malware threats but have not installed an independent app. I will try that though and see what happens. I will also look and see if this tablet is still not under warranty, but honestly just going a phone repair to have battery replaced might be cheaper and faster than sending back to Samsung. Thanks for the help.
Hey everyone. I was hoping someone would be able to help me with this. I've tried searching for this issue but can't find a solution.
Basically over the weekend, I noticed my phone has been running hotter than usual and battery is draining within 3 hours. It gets hot to a point where the phone automatically shuts down. The phone can be just sitting on my desk with the screen off, idle and it's hot with battery draining.
On battery usage graph, it constantly shows that chrome is using 33% of the battery in the last 24 hours. I disabled chrome but the problem still persists. I went into developer mode and cross checked all the system processes and saw nothing unusual. I booted into safe mode as well but the problem is still there. I checked CPU-Z and I see that the processor is never below 50% while the phone is idling. I'm not sure what's using the processor this much that the phone is running hot.
I've uninstalled most apps, I've even turned off the cellular network and wifi but the problem is still there.
I don't see any physical defect or any bulging on the back of the phone or against the screen.
I'm about to factory reset this phone to see if this fixes it, but I was wondering if anyone has any suggestions before I do that.
Thank you!
Try temporarily disabling Google play Services and see if this helps. Any cloud app is suspect.
Disable Google Firebase. Clearing data in Google system apps may get it.
Is Global power management disabled? Do so if not. Disable any adaptive battery etc services.
Deal with power hogs on a case by case basis.
I would try to find the root cause rather than do a factory reset as it is likely to reoccur. Exceptions; malware, firmware upgrade/update, a 3rd party app that change hidden users settings (if rooted you have access to these... if you can find the altered one). You need to play with it and try to track it down. Get the tools you need to find it ie detailed app/services power usage.
Be careful though as you are burning up the battery. Power off the display once battery temp reaches 103F. Cool it down then proceed again.
Using a damp microfiber cloth will help to cool it.
Any resent upgrades or updates?
Any app recently installed or uninstalled?
What apps are using a lot of internet bandwidth?
Is it using excessive current with screen off too?
What's running at startup?