Develop Bugs

WiFi Scanning constantly

I have been having poor battery life since I got this device on launch day. I just noticed today that my Wifi is constantly scanning even though it is connected. I usually keep Wifi on most of the time since I have really slow 3g at home and the building I work in is like a concrete bunker built in the 1970s so nobody gets very good service in there.
Anybody else notice this?
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Yeah mine does this too but my battery life is still good.
Sent from my SPH-D710 using XDA App

this is also happening to me, and it is KILLING MY BATTERY!!!! really frustrating.

What do i look for to notice if its scanning constantly? is it the popup that comes up? with the networks that are in range?

i installed a free app called "watchdog lite", and it notifies me everytime my cpu usage goes over 50%, and at this time, i open watchdog, and it tells me "android system" is using 90%+ of the cpu... <<-- this happened EVERY 5 MINUTES when wifi is on. with wifi off, this only happened once in a while, maybe once every couple hours...
screenshow below: the critical battery drop happened when i turned on wifi, and CPU usage was going over 50% every other minute, and i restarted phone...
btw, this wifi issue does NOT happen when the phone is connected to a charger
Kikoshi said:
What do i look for to notice if its scanning constantly? is it the popup that comes up? with the networks that are in range?
Click to expand...
Click to collapse

I've noticed this as well and I believe its also negatively impacting battery life. Its interesting that it would continue to scan while its connected.
Sent using Tapatalk on my Super EpicTouch 4G

I posted on this earlier this morning. My wifi also turns off after about 4 to 5 minutes. I can toggle it off then back on ever time but this can't be normal.

Vegasrich said:
I posted on this earlier this morning. My wifi also turns off after about 4 to 5 minutes. I can toggle it off then back on ever time but this can't be normal.
Click to expand...
Click to collapse
Mine as well. Exchanged one for that reason and this one does it too.
The Evo3D Killer!!!

I'm hoping we get a fix for this soon.

Same here..
Sent from my SPH-D710 using XDA App

I see it now....damn never looked there actually. So is basically a bug.

Fixed yet?

I think multiple people (myself included) have confirmed that this was normal behavior - it scans constantly, yet there's no battery drain associated with it.
It seems that whenever you are on that Wifi settings page, it keep scanning constantly. But when you leave the page, it stops doing it that often (or at least doesn't drain the batter.)
You can check that by turning off wifi and still noticing big drain - which would indicate that wifi isn't the issue.
Now, there may also be a bug where this constant scanning actually continues. But like I said, it doesn't do it for everyone.

Use y5 battery saver from the market. It turns on and off with known networks and helps alot.
Sent from my SPH-D710 using xda premium

My wife's is doing this and it is definitely affecting battery. Viewing the battery graph, it does a decline of about 30 degrees with only 3G on and with wifi on it does a treacherous drop of about 50 degrees. I've actually told her to just leave 3G on all the time because it is easier on the battery. Hoping for a fix soon.

Mine scans a lot but doesn't hurt the battery. With moderate use im at 50% with 12 hours on.

Anyone else getting Wifi connecting and disconnecting about 5 to 10 minutes.

Vegasrich said:
Anyone else getting Wifi connecting and disconnecting about 5 to 10 minutes.
Click to expand...
Click to collapse
Check your wifi sleep policy.
Samsung Galaxy S II

J-u-i-c-e d-e-f-e-n-d-e-r

If you want to try something, change WiFi Sleep Policy to *never*.
It seems counterintuitive, but the bug where Android system uses a lot of CPU uses much more power than setting WiFi Sleep Policy to never as the WiFi is using very little power when not transmitting data while Android system is just sucking up your battery with this bug.

Better Battery Stats **Results** Anything stick out?

Hi all,
I'm wondering if someone with eyes better than mine could peep my post:
http://forum.xda-developers.com/showpost.php?p=34855908&postcount=4990
I'm getting horrible battery life on ktoonz kernel with mw86 settings.
I've got screenshots of better battery stats as well as ktoonz custom settings.
I've already adjusted my down threshold to 75.
Thanks,
RR

h20wakebum said:
Hi all,
I'm wondering if someone with eyes better than mine could peep my post:
http://forum.xda-developers.com/showpost.php?p=34855908&postcount=4990
I'm getting horrible battery life on ktoonz kernel with mw86 settings.
I've got screenshots of better battery stats as well as ktoonz custom settings.
I've already adjusted my down threshold to 75.
Thanks,
RR
Click to expand...
Click to collapse
Are you having battery drain problems? It appears your phone is awake more than it is in deep sleep. Have you tried the good ol' battery details screen in settings to see what your top usage is?

freeza said:
Are you having battery drain problems? It appears your phone is awake more than it is in deep sleep. Have you tried the good ol' battery details screen in settings to see what your top usage is?
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Click to collapse
I've attached the screenshots as requested.
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Oh... and this is only 1 hour of screen on time...
I guess my cell signal kinda BLOWS??? could this be the culprit?

Your signal search seems to suck, may be one issue. Another thing to try is go to system/bin and delete at add .bak to qosmgr and gsiff_daemon. They tend to try and run scripts for your CPU that don't apply. Next, do a Google search for kill media server apk. When you run it, it kills the media server that tends to eat a lot of battery. Disable sync on Google magazine/book/movies also. Last, buy gsm battery monitor from the play store and also battery battery stats. They will identify what's eating or power supply. Almost always on power up you can see the download/media app runs like crazy and if you don't force stop will just continue to drain and run.
You may also want to check into different governor settings to see if it will help. I also found it helpful to turn off Facebook sync unless i use the app....do the same for others u don't use like Google talk, maps, etc.
,
Sent from my SPH-L710 using xda app-developers app

h20wakebum said:
I've attached the screenshots as requested.
View attachment 1525777
View attachment 1525778
Oh... and this is only 1 hour of screen on time...
I guess my cell signal kinda BLOWS??? could this be the culprit?
Click to expand...
Click to collapse
You seem to have a wakelock issue. Did you turn off google now and disable report location in Maps?
Also, if your signal is the problem, you can test that by either 1) disabling the cellular radio (airplane mode + wifi on), or 2) by forcing roaming on another network with a better signal (roam control, internal roaming settings of the rom, using a different prl etc.)

Couple things to help for sure.... GTalk is auto sign in.. So make sure it's signed out, Sync settings, Extend duration between them! (Emails to few hours instead of push (Obviously it'll sync when you open the app), Try running Juice defender, It'll disable data if screen off. (SMS comes through) Brightness, turn it down some, I'm running the Ktoonservative with the kernel.. Netting atleast 2 hours screen on, 11+ hours battery and still sitting about 60% remaining (most days) Those are the settings i'm using and things i'm doing. (I play games off and on, Text, read forums, news, facebook) also, ensure Media isn't running. (Not media server) it's known to eat some battery randomly. Just a few things off the top of my head to help.

one cardinal no no is leaving the wifi on.
Sent from my Transformer Pad TF300T using Tapatalk 2

freecharlesmanson said:
one cardinal no no is leaving the wifi on.
Sent from my Transformer Pad TF300T using Tapatalk 2
Click to expand...
Click to collapse
???
???

It will greatly increase your wake locks if not inhibit sleep all together
Sent from my SPH-L710 using Tapatalk 2

Go to Maps>Settings>Location settings> Uncheck everything !!

freecharlesmanson said:
It will greatly increase your wake locks if not inhibit sleep all together
Sent from my SPH-L710 using Tapatalk 2
Click to expand...
Click to collapse
Wifi or cellular, it doesn't matter as far as wakelocks are concerned.
Cellular data consumes more battery than wifi data.
Unless you disable data all together, using wifi is more efficient way to run your phone.

nabbed said:
Wifi or cellular, it doesn't matter as far as wakelocks are concerned.
Cellular data consumes more battery than wifi data.
Unless you disable data all together, using wifi is more efficient way to run your phone.
Click to expand...
Click to collapse
On you are not grasping my simple statement I never said WiFi want more efficient but it would be foolish to pretend it doesn't wake lock and kernel alarm it up. For one wpa pretty much requires it to communicate every so often. Other reason.... couldn't tell you why precisely but of you look then you will notice it does in fact create huge wake periods
Sent from my SPH-L710 using Tapatalk 2

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Questions go in Q&A
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I would suggest killing your mobile data, or for a more extreme test running in airplane mode with wifi on.
I personally get 20-30 hours at home browsing the web / texting / googling / etc over the weekend, maybe 18-20 when im out and about. But at work i get MAYBE 6 hours, with under 30 minutes scrren on and usually less and an hour awake. Why the huge difference? Mobile signal strength at home i keep mobile data off, and wifi on, and have ~ -75dbm signal strength. At work i have no wifi and ~ -110dbm and my phone is constantly trying to get a better signal.
Looking at your original post, what is "audioOut_2" and " PowerManagerService"

Question, is media server something that can be frozen in Titanium Backup?
Sent from my SPH-L710 using Tapatalk 2

MikeWjF said:
Question, is media server something that can be frozen in Titanium Backup?
Sent from my SPH-L710 using Tapatalk 2
Click to expand...
Click to collapse
no, just force stop it a few minutes after you boot.
Sent from my SPH-L710 using Tapatalk 2

[Q] Battery sleuthing - your input is requested

Hello,
I was wondering if you guys would be kind enough to help me figure out what has been going on with my battery lately.. First up, here is all the relevant info:
Phone: Galaxy Nexus GT-i9250 GSM
Network: T-Mobile USA
ROM: Paranoid Android 2.54 - this is based on 4.1.2 - NOT the latest 4.2.1
Kernel: Franco Kernel Milestone 6 <-- My battery issues only started after I switched to this kernel. I had to ditch the stock kernel than came with PA because it was slow as molasses.
Here is the battery drain that shows 43% of total battery was drained in 6 hours
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Here are some more details that show how much time the phone was awake:
Partial wakelocks are shown here using BetterBatteryStats. I don't know what AudioOut_2 is but it's sucking down battery. Exchange is another battery hog evidently.. I don't understand why Google Plus is running, I NEVER open the program.
Here are the kernel wakelocks:
Here are the alarms that show which app is waking up the device how many times. LightFlow and Exchange seem to do this a lot. I have no idea why maps keeps waking my phone, I haven't opened Maps once or changed locations but the location service is relentless.
Here is CPU Spy showing that Deep Sleep is definitely working:
Please can anyone help me figure out why my battery drain is so out of control? I forgot to screenshot screen on time but it was less than 30 minutes. You can sort of see this from the graph on image #2.
Thank you in advance.

Bumping this in hopes that someone is able to help me figure this out.

it seems like your signal is fairly bad most of the time, that will drain your battery pretty bad since the device will try to seek better signal.
also, i would suggest you to upgrade to latest PA along with latest franco r361, I see a significant battery improvement after the upgrade.

light flow is keeping your phone awake as well.

hhwong said:
it seems like your signal is fairly bad most of the time, that will drain your battery pretty bad since the device will try to seek better signal.
also, i would suggest you to upgrade to latest PA along with latest franco r361, I see a significant battery improvement after the upgrade.
Click to expand...
Click to collapse
Thanks. Yes the signal is not great at my office, but it hasn't changed in the last few months. What has changed however, is how drastically my battery is now dying, this is recent.
I would update to the the new PA with 4.2.1 but there are a few things I'm not ready to give up yet like the old toggles etc. Once the new PA builds some of those older features back in, I'll be upgrading for sure.
Zepius said:
light flow is keeping your phone awake as well.
Click to expand...
Click to collapse
Yes it is, I don't know why it wakes up my phone so much. I tried checking the "reduce phone wakes" option, but that seems to miss notifications all the time.
Overall, even with not so great signal and light flow running, this battery drain just seems WAY too much, would you agree?

what is your screen on time?
and light flow has been known to kill battery. id honestly remove it.

Zepius said:
what is your screen on time?
and light flow has been known to kill battery. id honestly remove it.
Click to expand...
Click to collapse
Screen time was less than 30 mins
Sent from my Nexus 7 using xda app-developers app

How often do you charge the battery? Do you plug it in all the time? Do you run it dead all the time? Your battery may be getting shot out, happened to my wife's to the point it would not take a charge. New battery fixed it. Buy a battery of eBay for ten bucks. Worse comes to worse you have a backup battery if that wasn't the problem. Audio out only took 3.5% and most of the time was deep sleep. I think your battery is dying
Sent from my Nexus 7 using xda app-developers app

VonEsch said:
How often do you charge the battery? Do you plug it in all the time? Do you run it dead all the time? Your battery may be getting shot out, happened to my wife's to the point it would not take a charge. New battery fixed it. Buy a battery of eBay for ten bucks. Worse comes to worse you have a backup battery if that wasn't the problem. Audio out only took 3.5% and most of the time was deep sleep. I think your battery is dying
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
I charge it at least once a day - every night. Sometimes I'll plug it in during the day if I know I'm going out in the evening just so it'll be topped off when I go out. But I thought charging these batteries a lot didn't affect their ability to hold a charge?
I'll definitely buy a new battery either way, hopefully that's what it is.
In case anyone else has any other insight, please do share in the meantime.
Sent from my Nexus 7 using xda app-developers app

the7thson said:
In case anyone else has any other insight, please do share in the meantime.
Click to expand...
Click to collapse
remove lightflow. seriously.

Zepius said:
remove lightflow. seriously.
Click to expand...
Click to collapse
I'll miss it, but it's worth checking out what the battery does without LightFlow. Thanks!

the7thson said:
I'll miss it, but it's worth checking out what the battery does without LightFlow. Thanks!
Click to expand...
Click to collapse
For Maps wakeups. Try disabling auto location update if its not already. Open Maps > Settings > Location update (something like that)

Powers88 said:
For Maps wakeups. Try disabling auto location update if its not already. Open Maps > Settings > Location update (something like that)
Click to expand...
Click to collapse
Cheers. I do already have everything turned off, screenshot attached.
Could it be Google Now that's causing these location updates? It always knows how far away Home is when I'm away from Home.

the7thson said:
Cheers. I do already have everything turned off, screenshot attached.
Could it be Google Now that's causing these location updates? It always knows how far away Home is when I'm away from Home.
Click to expand...
Click to collapse
it is. google now periodically calls the gps to update your time to home

Zepius said:
it is. google now periodically calls the gps to update your time to home
Click to expand...
Click to collapse
The more I think about it, the more I believe that Google Now could be a major culprit in draining battery. I'm going to try disabling it entirely to test. Do you have any experience with that by any chance? On how it affects battery?

the7thson said:
Cheers. I do already have everything turned off, screenshot attached.
Could it be Google Now that's causing these location updates? It always knows how far away Home is when I'm away from Home.
Click to expand...
Click to collapse
Screenshot tells me its still on. Top of the menu, Location Reporting: Your location is updated Automatically

the7thson said:
The more I think about it, the more I believe that Google Now could be a major culprit in draining battery. I'm going to try disabling it entirely to test. Do you have any experience with that by any chance? On how it affects battery?
Click to expand...
Click to collapse
I use Google now and easily get 3 to 4 hrs of screen time
Sent from my Galaxy Nexus using Tapatalk 2

Powers88 said:
Screenshot tells me its still on. Top of the menu, Location Reporting: Your location is updated Automatically
Click to expand...
Click to collapse
You're right, I set it to "do not update your location". What does this do exactly? Looks promising though.
Sent from my Nexus 7 using xda app-developers app

AT&T Kit Kat Bug Report Thread

Report any and all bugs you've come across while using the Kit Kat update. I'll update the OP when things get verified by more than one person.

As this phone isn't my daily driver (switched back to an iPhone. FOR SHAME!) I have only come across one bug.
The brightness resets back to 100% and turns off Auto Brightness upon a reboot.

So far from what I can tell:
1) Home LED does not stay consistent when plugged in. Sometimes the LED will be 100%, and sometimes it will be at around 50%.
I did not get the Auto-brightness Bug mentioned above. When I have Auto-Brightness on and restart the phone, it stays on.

roa57 said:
So far from what I can tell:
1) Home LED does not stay consistent when plugged in. Sometimes the LED will be 100%, and sometimes it will be at around 50%.
I did not get the Auto-brightness Bug mentioned above. When I have Auto-Brightness on and restart the phone, it stays on.
Click to expand...
Click to collapse
Yeah, LED pulses as it charges. Not sure if thats what you're seeing.

So, the brightness bug only happens when you don't have a sim card in the phone. Odd.

Seems there is a bug with battery stats shown by the battery stats app
When the battery stats app is launchedjust after reboot, it fails to show any battery consumption against the screen..however once the phone is put to sleep and woken up, the screen time starts showing, but with the screen on time only after the screen is woken up, which leaves out any screen on time before the phone was put to sleep..this leads to underreporting of screen on time
For example stats below show screen on time of 1hr 30 mins, while it should be more like 2 hr 30 mins (1 hour was the use just after reboot but before putting the phone to sleep for the first time)
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I am able to pair my phone with car bluetooth, but it is only able to stream music, calls are not routed to car speakers.
Sent from my LG-E980 using Tapatalk

I have an at&t e980 but use it with an att straight talk sim and was unable to change the apn type in order to get mms working.
Fix found in this thread: http://forum.xda-developers.com/showthread.php?t=2761126

QSlide Apps
Some Qslide Apps open and close very quickly. Any suggestions on a fix?

If you use SwiftKey you may get the error message: Unfortunately the process com.google.process.gapps has stopped. A quick uninstall reboot and reinstall fixed the issue for me. Seems to be common. You may not see it (from the Play version) either as I am using the paid version from Amazon.
Sent from my LG-E980 using XDA Premium 4 mobile app

Netwoek mode?
Is there anybody here know how to switch network mode between 2G and WCDMA?

esslighter said:
Is there anybody here know how to switch network mode between 2G and WCDMA?
Click to expand...
Click to collapse
check this thread seem you have to change some system values after doing so tethering will stop working
http://forum.xda-developers.com/showthread.php?p=44161348

Updated my phone and now the battery life is terrible. Is anyone else seeing this issue?
Sent from my LG-E980 4.4.2 using XDA mobile app

Attaching a picture to MMS does not work a unless you have picture on phone
Sent from my LG-E988 using Tapatalk

Nextjp87 said:
Updated my phone and now the battery life is terrible. Is anyone else seeing this issue?
Sent from my LG-E980 4.4.2 using XDA mobile app
Click to expand...
Click to collapse
Yeap. same issue. Battery life is extremely crappy.

I have seen the exact opposite regarding battery life. Since the update my wife's G Pro has had great battery life.
Sent from my LG-V500 using XDA Premium 4 mobile app

marvin02 said:
I have seen the exact opposite regarding battery life. Since the update my wife's G Pro has had great battery life.
Sent from my LG-V500 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Battery has been great for me too. Doesn't seem worse possibly even better. Many times it takes a couple days to stabilize and if you are playing with the KitKat goodness a lot that could be part of it. I did factory reset and install all apps from scratch.
Sent from my LG-E980 using XDA Premium 4 mobile app

Those with bad battery life... Did you use a TOT, Update from a previous version, or flash the ROM? I am worried the ROM does not flash the modem. This may be causing wakelocks.
Sent from my LG-E980 using Tapatalk

Nelimungous said:
Battery has been great for me too. Doesn't seem worse possibly even better. Many times it takes a couple days to stabilize and if you are playing with the KitKat goodness a lot that could be part of it. I did factory reset and install all apps from scratch.
Sent from my LG-E980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
It's been roughly two days I suppose since I updated. Haven't used my phone much, it just drains quickly now. May as well factory reset and see what happens. Good to hear you guys are having luck with the update. Cheers!
Sent from my LG-E980 using XDA Free mobile app

I flashed tot, sometimes when I try to make a call the first one will wait and then pop a message saying mobile network not available, then the second call will go through but takes significant extra time. Anyone else have this issue or should I reflash?

Sudden Major battery drain on Note 4!

I took my note 4 off the charger this morning and used it for about 1.5 hours (no videos, just tapatalk and Web browsing) , and the battery went down to 73%. During this time I also noticed that my wifi toggle was turning off and on for no reason. I don't have smart network control check on.
Then I went about my day and set my phone down, asleep, and didn't touch it. At 11am I hear the "low battery" beep. I go over to my phone and it's at 5%!
My battery has never been this bad before, and this just started today with no app changes. As I'm typing this, my phone went from 20% to 16%.
Is anyone else experiencing this issue (both wifi toggling and battery issue) and know a fix? I've attached my battery graph from today.
Edit: It looks like the phone was "awake" all day today except for the time it turned off due to low battery. Also, it looks like Bluetooth is using way more battery than it should be.
Thanks!
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ireknole said:
I took my note 4 off the charger this morning and used it for about 1.5 hours (no videos, just tapatalk and Web browsing) , and the battery went down to 73%. During this time I also noticed that my wifi toggle was turning off and on for no reason. I don't have smart network control check on.
Then I went about my day and set my phone down, asleep, and didn't touch it. At 11am I hear the "low battery" beep. I go over to my phone and it's at 5%!
My battery has never been this bad before, and this just started today with no app changes. As I'm typing this, my phone went from 20% to 16%.
Is anyone else experiencing this issue (both wifi toggling and battery issue) and know a fix? I've attached my battery graph from today.
Edit: It looks like the phone was "awake" all day today except for the time it turned off due to low battery. Also, it looks like Bluetooth is using way more battery than it should be.
Thanks! View attachment 3511266
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Click to expand...
Click to collapse
So I found the culprit for the wifi. I have a tasker profile that turns it off when I'm not connected via Bluetooth to my house phone. This means that there is something wrong with my Bluetooth. Nothing has changed with my house phones. Any ideas on the Bluetooth?
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ireknole said:
So I found the culprit for the wifi. I have a tasker profile that turns it off when I'm not connected via Bluetooth to my house phone. This means that there is something wrong with my Bluetooth. Nothing has changed with my house phones. Any ideas on the Bluetooth?
Sent from my SM-N910V using Tapatalk
Click to expand...
Click to collapse
Try getting rid of the Tasker profile. I don't think it's your phone. I bought Tasker and tried to set up some cool stuff but it kept messing things up. I don't use it any more. Android does a pretty good job of taking care of stuff without it.

stueycaster said:
Try getting rid of the Tasker profile. I don't think it's your phone. I bought Tasker and tried to set up some cool stuff but it kept messing things up. I don't use it any more. Android does a pretty good job of taking care of stuff without it.
Click to expand...
Click to collapse
Thanks that was actually the first thing I did when I found out it was a tasker problem. I don't keep wifi on all the time due to battery drain (unless I'm mistaken on that?) so I'll have to bring it back eventually. I didn't think android had a "turn wifi toggle on when home" ability.
I unpaired my house phones and I'm going to repair them tonight and see if that helps.
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Lollipop doesn't let you toggle Wi-Fi with Tasker anymore w/o root access.
Sent from my SM-N910V using XDA Free mobile app

RedsonRising said:
Lollipop doesn't let you toggle Wi-Fi with Tasker anymore w/o root access.
Sent from my SM-N910V using XDA Free mobile app
Click to expand...
Click to collapse
You can still toggle wifi. It's gps that you can't toggle without root.
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I've had this happen to me twice including just now hence why I searched for posts on this. Seems like it happens randomly when I stop using WiFi hotspot and I'm at home with my WiFi automatically trying to turn on. I use wifimatic which turns WiFi on when I'm near a cell tower near my home and shuts off when out of range of that tower. My WiFi won't automatically connect if I turn off my Hotspot, so I have to restart. Just twice now this drained my battery from like 30 to 0 in less than a minute. It's not often it happens and I'm home anyhow so putting it on the charger isn't a problem. Maybe this helps but maybe not.

It's been my experience that leaving wifi on doesn't drain the battery very much. I leave mine on. Besides, the quick toggle is very easy to use. Trying to automate it is more trouble.
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