okay--i've been struggling with this all week and I can't figure out what is doing this. It might be bluetooth but it could be something else.
As I understand it Wifi should turn off when I put the phone in standby. For the first half of today that was the case. then mysteriously, it stopped turning off and guess what, my battery usage disappeared.
I have checked my BsB tweak settings, it is not set to have wifi on in standby. I have checked my wireless connections to disconnect after 30 seconds. Although that probably only works if i am away from a wifi signal all together.
so what else do i need to do to switch it back to default--I don't want wifi on when it's on standby. At the least, i want to be able to toggle it like it's supposed to.
thanks for the help. Once i get this figured out I am pretty confident my battery usage will be good.
I'm sure there are others who have experienced this problem. Even though I show no wake locks my phone drains at an unacceptable rate while on my Wifi at home. My phone can have a 60% battery when I go to bed, and be almost dead by the time I get up. The only clue that shows up in Android System Info or Spare Parts is network usage by '0' which is something with root access.
This is happening regardless of Rom. I've tried stock, Syndicate Frozen, Urban Fury, Bonsai, Stock Plus, and maybe another I'm forgetting. They all drain the crap out of my battery with wifi on at home so obviously this isn't a rom issue.
This leaves me to believe that either something on my network is forcing data to my phone keeping it from deep sleep, or the router itself is the cause. Turning on my phone to 3G, my battery life is spectacular overnight. It deep sleeps like it's had a case of beer with a bottle of nyquil as a chaser before bed. 1% an hour.
So, I've ordered a different router to see if that's the issue. I've googled my current router which is a D-Link DIR-655 and seems like others have had similar battery drains using that router but no one can emphatically say it for sure is the router. Guess we'll see when the new router arrives if it is indeed the DIR-655. Otherwise the next step is disconnecting everything else that is connected to my network (3 computers, 2 printers, XBox, Wii and a Blu-Ray player. I just wanted to point out to anyone else having issues with wifi and weird battery drain, that it may not be the phone that is the problem.
I too have massive battery drain when using Wifi. It doesn't matter what Wifi network I'm attached to (work/home/friends/etc), I burn about 10% + per hour on idle; whereas on 3G is burning only ~2%/hour on idle. On stock, Wifi was my battery saving grace.
I've just given up on using Wifi for daily use. I use 3G for everything now.
I hope the newest version of SFR (whatever the new one will be called) will remedy this problem I have. I haven't posted about it in the rom thread since I had a feeling it was just my phone or another bad flash in CWM.
I've been using that OS Monitor app to try and find the problem. On 3G all the network interfaces have static receive and send amounts as long as I'm not doing anything that requires data. Connected to my home wifi, there is a constant trickle of data.
When I let the phone sit overnight, there was over 4mb of data received, even if I turn off any kind of auto syncs on the phone.
wifi settings
Don't know if this will work for you but you can try. In the wifi settings click the menu button and select advanced then set the wifi to never sleep. I know it's counter intuitive but I went to sleep last night at 61% and woke to 57%. Wifi has been fine for me since changing that policy in the wifi advanced settings.
android_mp99 said:
Don't know if this will work for you but you can try. In the wifi settings click the menu button and select advanced then set the wifi to never sleep. I know it's counter intuitive but I went to sleep last night at 61% and woke to 57%. Wifi has been fine for me since changing that policy in the wifi advanced settings.
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Mine has been set at never sleep since I got the Epic in September, and I double-check after each custom rom flash. Good looking out though.
nikon120 said:
Mine has been set at never sleep since I got the Epic in September, and I double-check after each custom rom flash. Good looking out though.
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Same here. Mines always been set to never sleep.
Edit: I just tested my phone on my work's wifi network. CPU Spy says it's going into deep sleep just fine. OS monitor shows a static data received/sent number once I was connected. Obviously something about my home network is the problem.
android_mp99 said:
Don't know if this will work for you but you can try. In the wifi settings click the menu button and select advanced then set the wifi to never sleep. I know it's counter intuitive but I went to sleep last night at 61% and woke to 57%. Wifi has been fine for me since changing that policy in the wifi advanced settings.
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That is my general experience, too. These settings usually keep my WiFi usage low overnight.
But some nights, inexeplicably, I will wake up to find a large battery hit from WiFi. I don't think it is my WiFi router's problem, unless there is some outage duirng the night I am unaware of. Come to think of it, I had that problem last night but did not investigate early this morning before I left. When I get home, I will check with my laptop to make sure my router is running.
I have noticed this too and in particular over the past few days. I'm on the latest bonsai build which does have amazing battery life on 3G but now wifi does draithe battery much more than 3G. This never happened before. I have had my wifi set to never sleep. Any other suggestions?
Obviously haven't tested it overnight yet, but I shut down my one laptop and the constant data trickle immediately stopped. Right now it's looking like something my computer is running might be the culprit. Going to leave it sit overnight to see how it goes.
I found the cause of my drain! Narrowed it down to something from my laptop as when I shut my computer down at night, the drain would go away. The culprit was the HP Printer software for my wireless printer. Once I uninstalled it, the drain went away. Noticed in resource monitor that HPZinw12 was sending a constant stream of data from my computer. Why in the hell it would be also sending to my phone keeping it from sleeping seems pretty odd, but I recommend if anyone else who is having battery problems over wifi and happen to also have an HP printer, you might want to look into this as well.
I'd also add that my solution to getting rid of the problem and still being able to use my printer was just to uninstall the crappy HP software that came with the printer and add the printer through the control panel and let windows 7 install it. It doesn't throw on that HPZinw12 file that apparently polls the entire network constantly.
CapsLockKey said:
I found the cause of my drain! Narrowed it down to something from my laptop as when I shut my computer down at night, the drain would go away. The culprit was the HP Printer software for my wireless printer. Once I uninstalled it, the drain went away. Noticed in resource monitor that HPZinw12 was sending a constant stream of data from my computer. Why in the hell it would be also sending to my phone keeping it from sleeping seems pretty odd, but I recommend if anyone else who is having battery problems over wifi and happen to also have an HP printer, you might want to look into this as well.
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Since I have been experiencing similar symptoms intermittently and I also have a WiFi printer, I have tried to eliminate this as a potential cause. (I don't run an HP control app on my laptop, but already map the printer directly in Windows 7 like you suggest.)
In my case, I still get the excessive WiFi battery drain, and low battery level upon waking, sometimes overnight. But other nights the problem does not occur. So lately I have made sure that my laptop and printer are powered down before bedtime. And like you, a always have my WiFi sleep policy set to "never" and have a strong WiFi signal. But last night I still had the problem, and awoke to find the battery drained to 45 percent instad of its typical 90 percent.
Interestingly, I noticed not only high WiFi battery usage but also high "Cell standby" usage attributable to the well-known Time Without Signal problem -- and this despite my habitual use of the Airplane toggle workaround, which usually works.
Somehow, something caused both WiFi and cell radios to go crazy overnight.
BTW, I run a stock, unrooted Epic.
So far with SRF v1.1.1, my Wifi is back to normal.
On my work network, I've dropped 4% in 3.5hours with my work email syncing every 15mins. So that's pretty good usage given that sync interval.
I also do not have a printer at home, so the printer bit wouldn't have been a cause for me.
While the printer thing took care of the biggest problem for me, I still don't get as good of battery life overnight leaving my phone on WiFi rather than 3G. There is still something my computer is doing that wakes my phone up occasionally, but at least I'm not going to bed with a 70% battery then waking up to a dead phone. At least I have it narrowed down to one computer (total of 3 on my network), as when I shut that particular one down battery life for my phone is back to 1% an hour while sleeping. If I had to take a guess at this point, might be something with media sharing as I use that one as my primary location for music/videos to stream via Windows Media Center.
CapsLockKey said:
While the printer thing took care of the biggest problem for me, I still don't get as good of battery life overnight leaving my phone on WiFi rather than 3G. There is still something my computer is doing that wakes my phone up occasionally, but at least I'm not going to bed with a 70% battery then waking up to a dead phone.
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How do you know it is your computer? Have you tried just turning it all the way off?
Do you watch the services running on your phone? I routinely stop the DRM service, for example.
Except for the mysterious episodes when I experience this intermittent problem, my overnight battery usage is typically about 1 percent per hour.
boomerbubba said:
How do you know it is your computer? Have you tried just turning it all the way off?
Do you watch the services running on your phone? I routinely stop the DRM service, for example.
Except for the mysterious episodes when I experience this intermittent problem, my overnight battery usage is typically about 1 percent per hour.
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I've tested over a few nights with a mostly full battery off the charger and reset the timer on CPU Spy. The nights I shut that computer completely off, I get very little battery drain and the phone is mostly in deep sleep according to CPU spy. When it's on, the phone shows a good chunk of CPU at 800mhz and more battery drain.
Running a Nook Color with CM7.1 stable. Kind of an odd issue here, I have two different Bluetooth GPS devices, and when they are paired to the Nook and I turn my screen off and then back on, it loses the connection. The only way to reconnect the devices is to restart the Nook, as it fails to connect after the screen is brought back up. I have found that if I have the Nook plugged in for power, this issue does not happen. I have tried multiple GPS apps, reflashed CM7.1 multiple times, but still have no success unless I have the Nook plugged in, or I just ensure the screen doesnt go to sleep.
I really need this to work, as I'm using this as a pilot, and I can't have the screen on the entire flight as it will drain the battery quickly. I swore it used to work before, but I know I had issues with it, and maybe now realize what was causing those issues. On a side note, my friend has also tested everything I have done, but his works consistently and reliably regardless if he leaves the screen off, or turns it on and off repetitively. Hopefully someone may have an idea!!
Thanks in advance.
So noone has any thoughts or ideas at all?
Well seeing as it doesn't happen when your plugged in that would make me think that it has something to do with the fact that WiFi turns off when the screen is turned off. The Bluetooth and WiFi are on the same module i do believe. The default setting for WiFi is to stay on all the time while plugged in and turn off when the screen is turned off while on battery.
My suggestion would be to turn the WiFi to stay on all the time and see if that changes anything. Go to WiFi settings --> menu --> advanced --> WiFi sleep policy -->never. That would be my suggestion, hope that works for ya!
jgore43 said:
Well seeing as it doesn't happen when your plugged in that would make me think that it has something to do with the fact that WiFi turns off when the screen is turned off. The Bluetooth and WiFi are on the same module i do believe. The default setting for WiFi is to stay on all the time while plugged in and turn off when the screen is turned off while on battery.
My suggestion would be to turn the WiFi to stay on all the time and see if that changes anything. Go to WiFi settings --> menu --> advanced --> WiFi sleep policy -->never. That would be my suggestion, hope that works for ya!
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That's what I was thinking too. It seems that when NC goes into deep sleep Bluetooth will lose connection. By removing deep sleep you should be able to stay connected, although your battery will drain faster than with deep sleep on, it should have a better life with screen off than on.
Well I appreciate both of your responses. However, I should have mentioned that I do already have Wi-Fi set to always stay on/never sleep. Any other suggestions?
I have a brand new Galaxy S4 and have been having some serious issues
WiFi -
I've googled around and people seem to be having WiFi issues but only with DLINK routers, my issue is kind of different. I don't have a DLINK router, i have a brand new Vodafone router. The router is in my sitting room and when I'm in that room the WiFi is fine but when i'm upstairs in my room etc the WiFi signal drops a lot and it disconnects and reconnects almost every 5 minutes.
So far the fix has been to turn off WiFi power saving mode but when I do that everytime after a while when I try to use Google Play Store to download something I get a 491 errror. (UPDATE: The google play error is still there when using wifi power saving mode or not)
I've tried changing my encryption cipher in my router away from AES but again no luck. What can I do?
Battery -
Only got the phone yesterday wasn't focusing much on battery life but went to bed last night charged it, woke up used the phone for around 2 hours and was at 49%. I then ollowed every "tip" on the net turned off nearly ever feature put on power saving mode and the phone lasted from 1pm - 11pm and was at 5%
Anyone any thoughts?
Under kernel wakelocks in better battery stats. Is anyone getting the mmc0:0001:2 wakelock? It has some serious counts an I think it's a culprit of some deep sleep issues. I tried with factory reset and not restoring anything, just installing bbs and its still there. I'm attaching a pic of insane 1.9 million counts. Anyone got any idea what this is?
EDIT: okay, so I did notice it was ticking like insane when I was downloading some games. And figured I would try turning off Wi-Fi, look and behold, it stopped ticking. Even when I turned it back on it back on it didn't tick up either. But if I turned if screen and later checked it was ticking again. My router had been acting weird lately so I made it forget it and put up a hot spot on my other phone. Now it doesn't tick up either, so must be my router D-Link DIR-655 with latest firmware. Good thing in getting a new router next week. Will update if it's better (going to buy a DIR-865L). Please do report if you are having same problem and find other solution though.
EDIT2: I left it using hot spot and awake time went up like 2 min and deep sleep 1.5 hours. Now it sleeps like a baby. Will update with new router next week. Hope this helps someone.
EDIT3: After a restart it started ticking up again for some reason even when connected to hot spot.
wargreymon89 said:
Under kernel wakelocks in better battery stats. Is anyone getting the mmc0:0001:2 wakelock? It has some serious counts an I think it's a culprit of some deep sleep issues. I tried with factory reset and not restoring anything, just installing bbs and its still there. I'm attaching a pic of insane 1.9 million counts. Anyone got any idea what this is?
EDIT: okay, so I did notice it was ticking like insane when I was downloading some games. And figured I would try turning off Wi-Fi, look and behold, it stopped ticking. Even when I turned it back on it back on it didn't tick up either. But if I turned if screen and later checked it was ticking again. My router had been acting weird lately so I made it forget it and put up a hot spot on my other phone. Now it doesn't tick up either, so must be my router D-Link DIR-655 with latest firmware. Good thing in getting a new router next week. Will update if it's better (going to buy a DIR-865L). Please do report if you are having same problem and find other solution though.
EDIT2: I left it using hot spot and awake time went up like 2 min and deep sleep 1.5 hours. Now it sleeps like a baby. Will update with new router next week. Hope this helps someone.
EDIT3: After a restart it started ticking up again for some reason even when connected to hot spot.
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Galaxy Note 3 here. I'm getting the same thing, it's causing my phone to stay awake 100% of the time. I turned off my wifi and now the problem is done, but that is a huge hassle as I want to be connected to wifi all day if possible.
Will see if it's a router/modem issue or if it's a wifi on the phone issue.
Niviac said:
Galaxy Note 3 here. I'm getting the same thing, it's causing my phone to stay awake 100% of the time. I turned off my wifi and now the problem is done, but that is a huge hassle as I want to be connected to wifi all day if possible.
Will see if it's a router/modem issue or if it's a wifi on the phone issue.
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Okay so, kinda forgot to update this thread, forgive me, Im a human I got my new router DIR-865L and I keep getting the same wakelock, however, this doesnt seem to make my phone to wake anymore, so I guess it was my old router, DIR-655 that gave the wakelocks. If you can try with a new router or at least another.
My Galaxy S4 LTE-A has the same problem. It occurs only when I connected to wifi.
Mmc0:0001:2 seems related to sd card, so I removed my external sd card.. but it did no trick.
And it is thought to lead to battery drain.
When connected wifi, battery decreases about 3% per hour, which is nearly three times to LTE.
Sent from my SHV-E330S using Tapatalk
Any updates/solutions? I have the same problem, it started after i rooted my LG G2. Unrooting/changing firmware/factroy reset or changing my router gave no effect
Same problem guys, I have this wakelock always.
Anyone has any solution for it?
send from my N9005 with tapatalk
I have the same thing now, wakelock detector app is showing it running hundreds of thousands of times with the phone only on for a few hours.