I have been having a problem with battery drain on 4.2.2 from wakelocks.
If I am away from known wifi I have no problems, but as soon as I am within range of a known wifi network the phone will no longer spend any time in deep sleep.
Also I flashed google's stock 4.2.2 rom from fastboot, it is currently unrooted with the stock kernel.
Here is what I have found so far:
-the wakelock that is occuring is suspend_backoff,
-wifi is set to always on.
-the wakelock stops as soon as wifi is turned off, and is completely unassociated with any running apps, including Chrome, it happens right from boot.
Re: [Q] 4.2.2 battery drain on WiFi
Hmmm. I'm having no issues with WiFi drain. I've been in the opposite side of my house from my router all day too.
Maybe try a re-flash.
Sent from my Nexus 4 using xda premium
Re: [Q] 4.2.2 battery drain on WiFi
Maybe the router? I only say this because I had on old dlink that refused to let two older android devices (tablet and phone) sleep. At work it was fine. Are you using cpuspy to confirm?
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Thanks for the replies!
Originally I updated to 4.2.2 using the ota, and when I had the battery drain I wiped all partitions and reflashed everything, so I don't think that is the issue.
It may be the router, I have a Netgear, and other android and webOS devices have had problems with it... let me try using a different one.
Edit: Turns out it was the WiFi network! after switching deep sleep has started to creep back up.
Thanks for the help!
Re: [Q] 4.2.2 battery drain on WiFi
Edit: For some reason my tapatalk app randomly posted this. Weird.
Re: [Q] 4.2.2 battery drain on WiFi
Ha....a netgear is what I switched to. I haven't gotten 4.2.2 yet so crossing fingers.
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rxnelson said:
Ha....a netgear is what I switched to. I haven't gotten 4.2.2 yet so crossing fingers.
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hmm, mines always had problems... it's a WNDR3400, I hope you're is better than this one!
Related
Last week when the Onavo data monitor app appeared prominently placed on the market home screen I gave it a try.
Unfortunately it created a very annoying bug on my phone running JVU and Semaphore 2.5:
whenever my phone looses it's wifi connection for any reason it will not recognize and connect to available wifi anymore even if placed directly near the router with full signal strength!
The only way to get it connected again is switching wifi off and then on again...
I already uninstalled the app and did a factory reset but nothing changed. Probably it messed up some system files that don't get touched during factory reset.
As I'm in vacation now and don't have my data cable with me to flash a fresh firmware, is there any way to resolve this issue in other means?
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Nobody here with any idea how to resolve this? It's really annoying as even battery consumption goes up very much when the phone looses wifi and auto connects to 3g.
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I have no idea about your problem. I also have just installed Onavo on JVU firmware for a couple days, but everything is still ok....
So, I'm thinking the cause is from your router!! Why don't you try another wifi network?
Good luck!! ^^
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Thanks for your answer! It doesn't depend on my router. As I said I'm in vacation right now and therefor using many different available hotspots, it happens on all of them... :-(
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Any issues with battery drain and onavo? Cause it was sucking mine dry!! I thought it was semaphore's fault (i'm on icssgs 4.2) until i figure it out and uninstalled it. Now it is Almost as prior installing onavo. I have a feeling that it left some garbage behind though.
It definitely left some garbage behind and this thread is about to find out how to get rid of it.
Battery drain was and unfortunately still is very high on my device thanks to the non desired 3g connection instead of wifi...
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Try to flash a new kernel again. It may help you updating some files that control wifi.
I used onavo for couple of days, battery drains. Its functions already in ICS roms, Less but good.
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Thank you so much! That did the trick. The onavo garbage seems to be gone for good now.
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You are welcome,
Could you please tell us about the battery usage. Do you noticed some changes in battery life?
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I only got my n7 a couple of weeks ago and almost immediately updated to 4.2. I didn't notice any issues. Immediately after the 4.2.1 update I keep getting random connection issues. I have to turn wifi off and on to resolve it.
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gk1984 said:
I only got my n7 a couple of weeks ago and almost immediately updated to 4.2. I didn't notice any issues. Immediately after the 4.2.1 update I keep getting random connection issues. I have to turn wifi off and on to resolve it.
Sent from my Nexus 7 using xda app-developers app
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I had the issue.. 32gb version in the US with the sep build. I actually had it prior to to 4.2.1. I ended up going into advanced properties and changing wifi to always on. Drains battery, but fewer need to turn wifi off and back on.
Tony
Yes. I have WiFi disconnects and random reboots since the new update .
Sent from my Nexus 7 using Tapatalk 2
WiFi Fixer
I use WiFi Fixer downloaded from Google Play. When the connection is dropped it automatically reconnects after a second or two.
Same on my 7 WiFi stops working at random times turn WiFi off and on fixes it, only started after 4.2.1 update
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Thanks for confirming everyone. I have wifi always on and still have the issue. Hopefully it gets fixed...
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Same issue after 4.2.1
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How do we make Google aware of these bugs?
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My WiFi is always on and tethered to my evo3d at least 8 hours a day. Not a single problem under 4.2.1.
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Just to clarify, i'm having this problem 100% stock. Not rooted what so ever. Roms/kernels could have this eliminated. But I wouldn't know.
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I rolled back too 4.1.1 then updated 4.1.2/4.2/4.2.1 now WiFi work's again no more disconnect....
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No wifi internet / e-mail / notifications after 4.2.1
I am having a similar issue. Stock Nexus 7, never rooted, installed the 4.2.1 update when it was pushed. Since then I can connect to wifi connections but there is no internet access. While the icon in the upper right has small flashing arrow like data is being sent back and forth, the icon remains gray and no internet-requiring services on the tablet work. I've tried everything that I (and Google Play and Asus support) could think of with no luck.
The only thing they could come up with at the end was to restore the tablet to factory settings. Unfortunately I have application data that I need to back up that I can't access by accessing the internal storage using my laptop (I'm stock, remember?).
So I'm between a rock and a hard place here. Anyone have any suggestions? It was very frustrating when the Asus representative suggested I use the built-in backup and restore feature:
Me: "That requires internet access to work right?
Asus representative: "Oh....right..."
My Wi-Fi on both my Nexus 7's is very slow. They stay connected fine but I'm getting about 150kbps download speeds. I factory reset one of them to no prevail. Anyone have any insight on this or heard of others with this issue? All my other devices work fine on the same Wi-Fi connection and I tried turning everything else off so just the Nexi where connected to see if the speeds are faster, but they aren't. I'm stock on both devices and both are the 16gb version, one older than the other.
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GiantJay said:
My Wi-Fi on both my Nexus 7's is very slow. They stay connected fine but I'm getting about 150kbps download speeds. I factory reset one of them to no prevail. Anyone have any insight on this or heard of others with this issue? All my other devices work fine on the same Wi-Fi connection and I tried turning everything else off so just the Nexi where connected to see if the speeds are faster, but they aren't. I'm stock on both devices and both are the 16gb version, one older than the other.
Sent from my SPH-L710 using Tapatalk 2
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Known issue. I logged a bug with Google and there's actually several open bugs reporting wifi issues. So far, none of the bugs are being picked up by google officially.
+1
Veeery Slow
quincyquinn said:
I rolled back too 4.1.1 then updated 4.1.2/4.2/4.2.1 now WiFi work's again no more disconnect....
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I've tried this same thing, and as soon as I installed 4.2, WiFi went to sh**. Completely stock.
So turning wifi off then on seems to be the generally excepted quick fix?
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r0zj0k3r said:
I've tried this same thing, and as soon as I installed 4.2, WiFi went to sh**. Completely stock.
So turning wifi off then on seems to be the generally excepted quick fix?
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Or use Static IPs. That solved it for me. I had to ask my company to provide a reservation for my MAC Address. It's like back in the 90s when Wifi started coming out using the BellLabs/Lucent chipset.
I constantly use my tab with wifi at home and I have noticed that when my tab comes off standby (after unlocking screen) it connects to wifi, it never used to to happen. Running stock ICS, anyone started experiencing this? I think this is also why my tab runs hot and battery drains.
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I think I may have solved my issue, under advance wifi settings I selected to "Always" have wifi on during sleep. My battery is not draining as much as before.
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Hi, i been noticing some battery drain after updating to 4.3 does anyone has this problem ?
Me too.
Yep me too....:thumbdown:
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Hoppy063 said:
Yep me too....:thumbdown:
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Hoppy063 said:
Yep me too....:thumbdown:
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Odd, mine seems to be a lot better battery wise since 4.3... You might want to use BetterBatteryStats to pinpoint the cause (maybe some wakelocks etc.)
Flash a custom kernel.
Yes, me too, battery seems worse than in 4.2.2. Or is it just because that I use it more now i.e. to restore apps etc?
Really? Oh no!!
I'm still waiting on my ota update
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dalanik said:
Yes, me too, battery seems worse than in 4.2.2. Or is it just because that I use it more now i.e. to restore apps etc?
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Im gonna go back to 4.1.2 because it has the best battery life which 4.2.2 and 4.3 doesnt have
me too. Really hoped android 4.3 fixed this problem ;(
been having this battery drain problem ever since 4.2.2
Do you guys have this drain problem in IDLE mode? because I do..
rough estimate, it drains like 7 to 8% in one hour when my device is in SLEEP mode..
But to all this, what apps or services seems to be draining the battery?
Sent from my Nexus 7 using Tapatalk 2
I don't know what your talk in about, I'm getting better battery life than I ever did before. I'm UV by 25 running faux kernel (u21), and clean ROM. I just removed all the gapps I don't use, and don't run anything that needs background syncing. Did you guys do clean installs(full flash via fastboot)?
I also turned off daydream which I am suspicious of, yet I have no proof that it does anything
megabiteg said:
But to all this, what apps or services seems to be draining the battery?
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Thats the problem, I hard factory resetted several times and leave it alone with no new apps
installed before.. disabled NFC, my mobile connection.. and still it drains like a leaky hose in idle mode..
some friendly ppl here suggested installing greenify and betterbatterystats and stuff..
but it doesnt really help me pinpoint whats doing the draining.. maybe because I am not sure what I am looking at..
end result, i even flashed (nearly bricked my nexus on several occasions too) and still the drain is there..
I thought my battery is dying or something.. but my nexus is barely 6 months old.. and battery status shows it as GOOD..
so yea, I am stumped..
Yeap.
I am having the same problem with the battery, the battery is spent very quickly, I have less applications installed and lately I have not used the phone to see if it was me and nothing. It may be because manually install the OTA?
Does the rule of waiting a few days/recharge cycles to get a true sense of the battery not apply to Nexus devices like it does to Samsung devices?
downwiththebanksters said:
Does the rule of waiting a few days/recharge cycles to get a true sense of the battery not apply to Nexus devices like it does to Samsung devices?
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The initial battery drain after flashing can be attributed to apps conducting their first sync and the kernel "settling." This only takes a matter of hours at best. After that, one can get a fairly accurate idea of how their battery is being tasked.
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i used to get horrible battery drain until I disabled google now.
I'm also experiencing severe battery drain after taking the 4.3 update on my stock, unrooted Nexus 7. It's been 3 days and no improvement.
Sent from my Nexus 4 using xda app-developers app
I too face same problem, and the App sucking most of the battery is "Kernel (Android OS)", second one is "Launcher", "Phone" and "Android System".
Any suggestions solutions found for this battery issue?
After upgrading to 4.3, I have lost my Wifi performance to my normal router. Now, while still able to scan available routers, I'm no longer able to connect.
Anyone know of a solution, short of an RMA?
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Wat kind of router are you using and what frequency? 5Ghz or 2.4?
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One is a linksys, the other is unknown as it's at the doctors office. As for frequency, one of each.
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Change wifi channel at router and try again.
With other wifi networks works fine?
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No. I have no connectivity. Wi-Fi performance has slowly diminished since I did the upgrade.
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ph37rd said:
No. I have no connectivity. Wi-Fi performance has slowly diminished since I did the upgrade.
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Setting a static IP has fixed it for me. Setting it on the phone that is. Happens far less now than when i didn't have a static IP.
How did you upgrade at 4.3?
Through official OTA?
if you could check it, reflash only radio.Img from factory Rom.
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My issue is not that bad.. the only issue i have since the update is the wifi signal drops completely, and the router next to me on my desk. The signal comes and goes for a couple of minutes then goes back to normal
RASTAVIPER said:
How did you upgrade at 4.3?
Through official OTA?
if you could check it, reflash only radio.Img from factory Rom.
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The upgrade was done via a full wipe (was rooted at the time) and flashed the image from Google. Phone has been stock since. After the upgrade, I noticed the Wi-Fi signal went from four bars in the living room to three. Before losing connectivity completely, then two. One to none happened pretty quick.