General :: Android S3 - Low Battery (almost Sleep) Mode?
May 17, 2014
I'm really not "using" my Android S3 phone all day long, it gets frustrating when the bettery runs at 30% at 2pm, without any real use.
So the concept would be:
1) either a "ROM" of Android, which would be seriously minimal - like the device is not a smartphone - so only wake up on incoming call or text message
2) or an app, which does the same thing - suspends the phone completely, and wakes it up only on the incoming call or text message
I was just curious - does something like this exist? I don't care about apps, notifications, wifi or sync, I was thinking more along the lines of would it be possible to use your smartphone like a typical "cell phone", and when you need other apps or full features (GPS navigation with maps, or Shazam, or whatever it is you need) - you just "reboot" or do a quick switch to "full Android" mode, and use those features.
I feel that the battery life should be at least 5 days in that mode, with light usage?
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Sep 24, 2010
Many of us have experienced some battery life fall out since the last update. I mentioned this in the battery life thread but I thought it deserved it own topic. I have an app that I downloaded called battery status. it has a battery history. and it says time without sleeping 7h 10m 25s ago. Thats exactally when I unplugged my phone. This explains why I am seeing 2-3% per hour loss while not using the phone and while in airplane mode. Before the update I could keep the phone in airplane mode, not usre it, and leave work with over 94% battery life. So this proves that somehow the phone is not going into sleep mode... I can guarantee that everyone else in that is experiencing battery drain since the sept 16th update is due to this reason. The question is... why the hell is this happening and why won't the phone go into sleep mode?
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Jan 5, 2010
I apologize if these topics were already covered in previous threads.I wasn't able to find anything related in my searches. Auto-rotation for keyboard when answering a text message received in sleep mode does not work. If I actively send a text when phone is already awake, keyboard rotates with no problem but when I go to reply to a text that I received while phone is in sleep mode, the keyboard does not rotate. Is this the norm?I am also experiencing a delay when the I wake the phone. After unlocking the phone, I used to go straight to my home page, now I get a "loading" message which takes several seconds. Is this due to the number of apps I have loaded? Is it possibly due to number of photo frames I have on my home screen or the complexity of the wallpaper?
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Nov 13, 2010
Last two days my battery has been draining like crazy and my phone won't go into sleep mode. I charge before I go to sleep and take it off when it's done and it will die before I wake up in about 8 hours .
Use to be at like 97 or 95 when I get up
I've gotten pretty good at managing my battery life , I use superpower and juiceplotter to monitor it .normally I waist less than 1% an hour when not in use and the phone is asleep
I've deleted every app I've installed since 1 day before this started. Only thing unusual I see in my logs is this message (Adding Alarm{464294e8 type 2 com.android.phone })
And this
Alarm triggering: Alarm{46354990 type 2 com.google.android.location} Adding Alarm{465bbb80 type 2 com.google.android.location }non stop repeatedly every second when phone is not in use.
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Jul 21, 2010
Night before last, I charged the battery to 100% before I went to sleep. When I was going to sleep, I unplugged it. When I woke up 7 hours later, it had only dropped 30% to 70%. I did the software upgrade, and the battery jumped back up to 80% and lasted a Long time. Well, last night, I did the same thing, and when I woke up, my battery had dropped to 50%. The phone was supposedly sleeping this whole time! A few minutes on the browser to look up the issue brought me down to 40%.
All I installed yesterday was YellowPages, WhitePages, Flikie (then uninstalled it) and LauncherPro (could this be the culprit?). Before I went to bed though, I opened GMail, and it was having trouble connecting to the server and finally gave me a "retry" button because it couldn't connect. I never pressed it and just went to sleep. WiFi, GPS, everything was off, and the screen was set to lowest brightness (which doesn't even matter here.) Why it dropped so much?
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Jun 14, 2012
I have a smartq t20 tablet (great cheap tablet!) running ICS, my question is, when I leave wifi on all the time, what happens when the tablet goes to sleep (not awake according to the battery details)?I can leave a download running and it would continue when the screen is off, does this mean my tablet is never going into deep sleep? Or is that unrelated?
I know the wifi itself drains more battery when left on even if it isn't being utilized but I was wondering about the CPU side of it.
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Jan 21, 2012
It seems something changed in GingerBread release that changes either how phone communicates with PC or whatever, but if you plug it into PC that runs Windows 7 OS and then put PC in sleep mode, the phone will still show charging icon, but will rapidly discharge.
I've noticed this on Atrix 4G, when it had Froyo 2.2 it would stay 100% charged overnight, but once it got updated to GB 2.3, I can't leave it connected to PC anymore, by the morning it's completely dead. (by the way it can last at least 12 hours if unplugged and laying on table)
Unfortunately Atrix 4G is the only phone I have that can get Froyo to confirm this, but all others phones I've tried so far all have GB 2.3.x and all suffer the same issue.
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Dec 12, 2013
I had it first on the Galaxy S3 with 4.2.1 stock rom, I don't know if it might be an app that might be causing this, basically when i lock the phone the screen turns off but then when i press the power button or the home button to turn on the screen it does not do anything, I know the phone is still on because sometimes if i get a text message i can see the blue led blinking and it will continue to blink even when it's frozen.
The only way to bring it back is by holding the power and home button together in order to reset it.I tried factory reset and it would not work, I flashed the phone with a custom rom for Paranoid Android 4.3 and it worked great for about a week, no issues at all, but then it started freezing when locked again.
I don't know if it might be an app that might be causing this, basically when i lock the phone the screen turns of but then when i press the power button or the home button to turn on the screen it does not do anything, I know the phone is still on because sometimes if i get a text message i can see the blue led blinking and it will continue to blink even when it's frozen.
Even worst, if i'm listening to music and i lock the phone or if the screen times out and locks when i try to unlock it i can see it's stuck but the music is still playing....
Also, if the phone is stuck and i try to call it, it will not ring not turn the screen on, it's not like the problem is just the physical buttons, i don't know what to do since the phone is out of warranty, I have never dropped the phone and there is no damage on it, it have never over heat either so i don't know what can i do...
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Aug 28, 2011
Phone - HTC Hero, Android 2,1
It will not go to sleep mode when pressing the end/power key. But it still takes phone OUT of sleep mode, but now I have to wait for the screen timeout instead of pressing the button again.
I tried to find answer to my question, but i failed... I tried Reboot, Spare Parts - i don't know if it worked properly, Hard reset, but the power button still not working properly.
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Sep 28, 2013
The alarm does not sound when my tablet goes into sleep mode until I turn it on and without unlock it, is at this moment that it begins to sound even if the time go over, this is the case with many applications alarm, for the moment I use Alarm Clock Plus.
I have a Chinese Android tablet with Jelly Bean 4.1.1 rooted. I don't use any task killer.
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Feb 3, 2014
Sometimes when i power on my phone (from sleep mode), i get this notification. How to block or remove this thing?
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Jan 11, 2013
I'm having problem with my Nexus 7. I have Android 4.2.1 on it. I've been using it for about a week now and every night i would turn it off, but in the last few nights, i decided to leave it on sleep mode to see how the battery life was.
On the google site, it says that the Nexus 7 should have 300 hours of standby. Is that the same as 300 hours of sleep? Because when I left my Nexus 7 on overnight, it drained from 55% to 33% in about 8 hours. That doesnt seem like 300 hours to me.
Also, I've tested it again, started at 100%, no wifi, no gps, no apps running in background, no syncing, in sleep mode, and it's draining at about 2% and hour. I've read on this forum that people have been getting like 2% every 8 hours on sleep, or even overnight. I've never used 4.1.1 so I dont have anything to compare it too. Does the 300 hour standby time mean powered off Nexus?
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Nov 22, 2012
Battery of desire hd drains very fast even in the deep sleep. Tried every rom did full wipe turned off wifi gps etc tried every thing but no luck i tried current widget it not below 60 MA. Is it the problem of battery or the hardware? and when i switch to airplane mode amazingly it goes to 2 MA.
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Aug 1, 2010
Is there any kind of app that can block incoming texts and calls, but still allow me to keep my phone on? I'm going to Mexico for vacation, and I dont want a 45378594365 dollar phone bill.
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Apr 6, 2009
Is the actual version of the emulator able to reproduce the sleep mode? (Android 1.1 SDK r_1)
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Aug 30, 2010
Looking for an app or widget that will automatically disable 3G and change my phone to 3G (Edge) when the screen is asleep or I press the lock button.and the re enables when I unlock.
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Jul 25, 2010
I like being able to listen to music as I'm falling asleep never having to shut it off later.Is there like some way to enable like a way for my Android phone to shut itself off at like a specific time?
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Jun 1, 2010
I'm developping a LiveWallpaper on Android 2.1. This application must download an image every fifteen minutes and draw it on the screen. Everything works except when the phone is in sleep mode. Do you think it is possible to run an application like this when the phone is in sleep mode? And if yes how?
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Jan 20, 2010
I have a app that needs to run a command even if the phone goes to sleep. I have it running as a service but it runs randomly when. Is there a way to have the service run even when the phone is sleeping.
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May 26, 2009
I am sure it is buried in the SDK somewhere but I couldn't find it. This is relevant to a service running in the background: How can I find out if the device is in sleep mode?
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Jun 23, 2010
I'm trying to find some official android documentation that discusses sleep mode, with a focus on issues that might be of relevance to app developers. For example, things like:
1. What causes a device to enter / exit sleep mode?
2. How are running processes impacted when the device enters sleep mode? (I believe they continue to exist, but don't execute because cpu activity is suspended. When the device wakes up execution picks up where it left off?)
There is some good info in the API docs for PowerManager and WakeLock, but nothing there that explicitly states what I have assumed in point 2 above. Are the above issues (and any other relevant issues) documented anywhere?
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Mar 1, 2010
Is there any way to detect whether an android phone is in sleep mode (screen is black) in the code?I wrote a home screen widget. I don't want the widget gets updated when the screen is black to save the battery consumption.
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Jan 26, 2010
I am using a service in my app. But it doesn't seem to work in sleep mode. I have implemented startforeground to prevent it from shutting down but it still does. Following is my code.............................
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Oct 6, 2010
I have a service which polls a server at certain intervals. I use an AlarmManager and a BroadcastReceiver to start the service. My problem is that after a certain duration, even though the WiFi is still enabled, but for some reason, my application can't contact the server. I get an "Unreachable network" error. Note that I've already acquired a partial wake lock as well as a wifilock. Here's my code for the BroadcastReceiver.
public class ServiceAlarmBroadcastReceiver extends BroadcastReceiver {
public void onReceive(Context context, Intent intent) {
WakeLock wakeLock = null; WifiLock wifiLock = null;
try { PowerManager pm = (PowerManager) context .getSystemService(Context.POWER_SERVICE);
// acquire a WakeLock to keep the CPU running
wakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "MyWakeLock");
if(!wakeLock.isHeld()){ wakeLock.acquire();
} Log.i("ServiceAlarmBroadcastReceiver", "WakeLock acquired!");
WifiManager wm = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
wifiLock = wm.createWifiLock(WifiManager.WIFI_MODE_FULL , "MyWifiLock");
if(!wifiLock.isHeld()){ wifiLock.acquire();
} Log.i("ServiceAlarmBroadcastReceiver", "WifiLock acquired!");
context.startService(new Intent(context, ThePollerService.class));
} finally { // release the WakeLock to allow CPU to sleep
if (wakeLock != null) { if (wakeLock.isHeld()) {
wakeLock.release(); Log.i("ServiceAlarmBroadcastReceiver", "WakeLock released!");
} } // release the WifiLock if (wifiLock != null) { if (wifiLock.isHeld()) { wifiLock.release();
Log.i("ServiceAlarmBroadcastReceiver", "WiFi Lock released!"); } } } } }
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Jul 8, 2010
I just got an evo a couple weeks ago. I love the phone, but after I downloaded the OTA, it won't go into sleep mode. I've turn off all the syncing, tried task killers, tried stopping google talk, the calender, everything I have read in forums.I am thinking my only choice may be to root, but I wanted to see if anyone else had this problem and if anyone actually got it fixed.I really don't want to risk bricking my phone if I don't have to..
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Jun 17, 2010
So, I have left my almost fully charged Evo on my nightstand the past couple of nights without plugging it in, and when I wake up in the morning, my battery is almost fully drained. One night I did have the 4G on, but the other night I did not. Is there some sort of setting or sleep mode so it doesnt drain the battery when I am asleep?
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Mar 2, 2010
I was investigating the issue of setting up a delayed activity/event, that will occur and trigger even if the phone is in sleep mode (wake up, do what you need to do, go back to sleep). I was thinking of the following methods: 1. sendMessageDelayed 2. Timer 3. AlarmManager.The basic requirement is to be able to set a triger in the future, and be sure that this trigger wakes up the system if it is sleeping,perform the task, and go back to sleep.A partial wakup is required (no screen flickering). Currently i'm using the sendMessageDelayed, and i keep a wake lock held for the timeout period (bad practice).
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Sep 10, 2010
Have an iPhone and part rely on it for diction and recordings. However a new software upgrade has meant when it's recording it tells you on the home screen if you press the button to wake it up, even if locked. Does the android have voice recording in sleep mode and if so does it do so without it stating it on the screen?
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Feb 18, 2009
the thread sleeped not killed and it wakes up after 10 sec and try to post message and it causes exception. is there any way to kill the threads those are in sleep mode while exiting the application?
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Dec 28, 2009
I have code that runs in the background and holds a connected Socket and it's InputStream.It calls read() infinitely until something is received, then continues to parse.Socket timeout is 0 of course.I am interested in what would happen when the device goes to sleep?Is the CPU off? Will this socket be responsive in this case?
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