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Anybody else experiencing pretty bad battery drain with blackhole 2.4? Known issue? I don't want to reflash back to an older version without confirmation because it's a bit of a hassle.
Don't mean to come off crass if it sounds like that, but it's been rather severe the past few days.
Running stupidfast 1.54 fwiw.
Thanks for your help guys.
Sent from my stupidfast DJ05
I noticed that when I first started using blackhole 2.4 I had awesome battery life, now it has really started to trail off. I can get through the day, but it's pretty low at night.
31% in about an hour... Can't be normal right?
Also I've turned off bln for now because I assumed that had something to do with it.
Sent from my stupidfast DJ05
If I dont use it overnight it will go from 100% to 45% in about 7 hours. If I am reading the news and just surfing the web it goes from 100% to about 60% in about an hour.
Not sure if it will help, but try charging to full and wiping battery stats in "advanced" in clockworkmod
Sent from my ComaVolt Voodoo5 Blackhole Fascinate
I'll give it a shot when I get home.
Thanks.
Sent from my stupidfast DJ05
31% per hour is too fast, when with display on and heavy use. I only burn battery like that if I leave bluetooth or wifi sharing on. Perhaps brightness is on full. Maybe something quirky in your kernel install. I've seen no battery life change, positive or negative, with blackhole 2.4.
I let my battery drain completely, and charged the phone while it was off to 100% and reset my battery stats. So I'll be testing the runtime now under average use as earlier today. I'll report back with the time in this thread when I can.
try doing *22899 instead of *228 it helped me a ton when my battery was going fast. My battery would go randomly 5% every hour in standby until i did this. Now it goes maybe 1% every 2 to 3 hours.
Usage is much more acceptable now. Btw what's that *228 stuff?
Edit: I looked it up, why would I need to reprogram? Regardless I still tried it out, let's see if it makes a difference.
Sent from my stupidfast DJ05
vegittoss15 said:
Anybody else experiencing pretty bad battery drain with blackhole 2.4? Known issue? I don't want to reflash back to an older version without confirmation because it's a bit of a hassle.
Don't mean to come off crass if it sounds like that, but it's been rather severe the past few days.
Running stupidfast 1.54 fwiw.
Click to expand...
Click to collapse
Of all the ROMs and kernels I tried, I consistently got the poorest battery life with StupidFast kernels and BlackHole ROMs. I tried them individually so as to eliminate issues caused by the other (ROM or kernel), and the result was always the same. I can't imagine what the battery drain would be using them together.
I'd try swapping out the kernel since it's the easiest to do and see what difference that makes. Geeknik is no longer developing or supporting the StupidFast kernels, so they're a bit of a dead end at this point anyway.
I get pretty good battery life pairing blackhole with jt 11/29 and a properly rejuvenated battery (sucked to death then overcharged while off once a month or less). Not sure what causes your issue, just want to add that not everyone had the same negative experience.
In terms of geeknik, he is absolutely still making kernels last time I checked, and people still love them religiously. I personally have not had a lot of luck pairing stupid fast 1.54 or 12/20 with black hole, so one may have better luck with super clean for those kernels. I have no idea why, or if my experience is isolated. Human nature prevents me from spending a lot of effort testing configurations that don't work well for me.
In terms of reprogramming your phone with *228 or *22899 (or *22800, whatever that does), you only should be concerned with that if you are getting a lot of signal loss in your standby mode battery stats. It resets the PRL, which is the list of local compatible towers the carrier authorizes your phone to use. More towers means less signal loss, especially relevant while traveling. Now if someone could explain to me why both phones and pdas are too dumb to manage their own PRLs, that would make my year!
Edit: Apparently I have no idea what I am talking about. The link in the next post indicates that geeknik no longer owns a Fascinate and its no longer developing kernels for it. My error.
Swyped w/ XDA App. When in doubt, mumble.
soba49 said:
In terms of geeknik, he is absolutely still making kernels last time I checked
Click to expand...
Click to collapse
Oh, ok, perhaps something has changed since his latest post here.
Still, I consistently got lousy battery life with his kernels, and honestly, I saw no objective improvement in speed. To be fair, I don't see any speed increase in JT's kernels either. I suspect the majority of people's lag is in the ROM, not the kernel.
Well I'm not experiencing any issues after I did the battery stats wipe last night, so it's probably not the kernel and rom pairing.
Sent from my stupidfast DJ05
I have been having serious battery problems every since I got the phone.. the other day I installed Blackhole 2.4 running JT's 11/29 kerenel.. also running DJ05.. obviously... and I haven't been this happy with my battery to date! I am getting a good 16 hours of pretty heavy use where as before I would only get 10 hours maybe.. my battery would drop 30 percent at night before.. now it only dropped 11 percent.. still too much IMO but a lot better than what it used to be!
This is not something i've ever had issues with personally, however I do completly drain the battery and fully recharge it, then wipe battery stats from cwm recovery, every few weeks.
Just postulating a theory here, but I feel like I've noticed a pattern with the battery life I see on EF02.
Day 1: installed AAi3 over SRF1.2, kept ec05 modem. Horrible battery (dropping 15% per hour with very light use)
Day 2: wiped everything, flashed aai3. Still same bat life with ec05. Odined ef02/ got ef10 ota. Battery life improvement but hard to quantify.
Day 3: put phone on charger on way to work, was at 99% for most of the drive (35 min). Kept phone in pocket all day, moderate use with some 4g (no wifi). Did not have to plug phone in until day 4 at about 1pm (28 hrs battery life).
Day 5 and 6: left phone off charger on way to work, phone dropped to 40% or so after about 12 hours, moderate use both days.
Day 7: charged on way to work, battery at 65% when I left work after heavy use with 4g on all day.
WhI at I think is happening is that samsung tweaked the way the epic charges the battery. On ec05 (and all previous builds) when I charged during my commute I would get a battery full notification within a minute or two. On ef02 (or at least aai3), I don't get a notification for 20 minutes at least, and sometimes not at all. Also I notice that when I wake up in the morning if I do anything my phone drops to 99% and keeps charging. Without me pulling it off the charger.
Anyone else noticed this behavior? The fact that charging the battery with the phone off is messed up on ef02 makes me feel like I'm right as well.
Sent from my SPH-D700 using XDA App
I've definitely noticed that it takes awhile to get the battery full indicator. I think you may be on to something. There are times when my battery stays at 100% for an hour or 2. Other times it drops to 99% right away. In any case i'm glad they fixed it because i couldn't even get my phone to charge past 96% before.
My phone has always done this.
houkah said:
I've definitely noticed that it takes awhile to get the battery full indicator. I think you may be on to something. There are times when my battery stays at 100% for an hour or 2. Other times it drops to 99% right away. In any case i'm glad they fixed it because i couldn't even get my phone to charge past 96% before.
Click to expand...
Click to collapse
Sent from my SPH-D700 using XDA App
Remember that these are all leaked builds and aren't a finished product..... It could be anything but its most likely not intentionally put there by samsung...
I can't get EF02 to go into deep sleep, anyone using stock deodexed with EF02Plus kernel able too go into deep sleep?
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Sent from MyEF02 using XDAPA...
The bonsai kernel in aai3 does for sure.
Sent from my SPH-D700 using XDA App
Yeah Im about to install it,thanks...
Yeah I've noticed this also. They definately did something with the kernel or the way it charges cause I've noticed since ive been on ef02 my phone charges to 100 % where before It would never get above 96 or 97 %. I wonder if they took some ideas from the netarchy kernels people here were working on?
You've thought this through so much that your convincing yourself
I have extremely consistant and terrible battery life on the EF02 roms. Cannot for the life of me figure out why. A friend of mine has an EPIC on the same Rom, we are both running aai3 with ef02 modems, both work at the same place so we spend a great deal of time in the same building. He gets a day and a half sometimes 2 days (and he hasn't callibrated). I will get maybe a half a day if I'm lucky and I have callibrated... no idea why this is. I can go back to ec05 and get a day or more out of it no problem which seems about on par with anyone else. I am running no widgets and this is extremely moderate use, pretty much only texting throughout the day.
only difference is the callibration. I'm almost wondering if I need to odin back to ec05 and recallibrate and try to flash ef02 again. That's the only thing I can think of that is different between our setups.
I have extremely consistant and terrible battery life on the EF02 roms. Cannot for the life of me figure out why. A friend of mine has an EPIC on the same from, we are both running aai3 with ef02 modems, both work at the same place so we spend a great deal of time in the same building. He gets a day and a half sometimes 2 days (and he hasn't callibrated). I will get maybe a half a day if I'm lucky and I have callibrated... no idea why. I can go back to ec05 and get a day out of it no problem. I am running no widgets and this is extremely moderate use, pretty much only texting throughout the day.
only difference is the callibration. I'm almost wondering if I need to odin back to ec05 and recallibrate and try to flas ef02 again. that's the only thing I can think of that is different between our setups.
Are you on ef02 modem or ef10? Have you tried ee03 modem? You are describing exactly the same battery problem I had when I flashed aai3 without odining the new modem.
Sent from my SPH-D700 using XDA App
I'm on the ef02 modem. I tried ef10 also with the same results, I was getting a pretty poor signal though on there so I went back to ef02.
I seen noobnl was using ef10 with good life, and most people are using ef02. That's what my buddy is using also. I don't get it.
Did you flash from cwm over a froyo rom, or did you odin to ef02 first? Just wondering, because I just wiped 3x over srf 1.2 instead of going the 'proper' odin route. Other than my modem hiccup, its worked for me.
Sent from my SPH-D700 using XDA App
I odined the files from Noobnl's thread at first and was getting the bad battery life. When my buddy odined with the great battery life, he used the ef02plus.tar. So I tried odining again with ef02plus.tar, but not dice, still have crappy battery life.
Try to odin back to ec05 and flash aai3 over from cwm... Worked for me. Just remember to odin the new modem if you want it
Sent from my SPH-D700 using XDA App
Yeah I'll give it a shot. I'm willing to try anything to keep my phone from dying at lunchtime.
Sent from my SPH-D700 using XDA App
ecooce said:
I can't get EF02 to go into deep sleep, anyone using stock deodexed with EF02Plus kernel able too go into deep sleep?
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Sent from MyEF02 using XDAPA...
Click to expand...
Click to collapse
Did you ever find an answer to this? I tried the stock/deodexed EF02 ROM for a day on the EF10 modem and a day on the EF02 modem. Battery life on either was terrible due to the deep sleep problem.
aai3 is anonymous rom version 3
So I tried odining ec05. Recalibrated.
Flashed just aai3. I pulled my phone off the charger at 8. 12 now. Its been 4 hours and I'm at 50%. Looks like it didn't work. Poooop.
Sent from my SPH-D700 using XDA App
First I'll start off by saying tonight was a really terrible night for me so if this comes off as venting so be it lol.
Samsung, you're getting there that's for sure. Scrolling, screen off/on is buttery smooth and things seem to be working better than I had expected.
With that being said, there is still work that needs to be done. It may just be my location, but with the EG22 modem I feel like I've been roaming more than usual. I flashed back to the EC05 modem just to see and it confirmed my suspicion: either my phone or my area just doesn't like the new modem very much.
Another key component is battery life, it's been pretty sub-par for me. At work I have terrible reception (no bars, even roaming) so I put the phone on airplane mode and the battery is still dropping pretty consistently, much faster than on any of the other leaks or Froyo. Must be a rogue process(es) eating it up, but I can't be sure unless I do some digging which I don't really feel like doing.
All in all it's definitely coming along nicely, but by no means is it phenomenal. But for the first time since DI18, I can honestly say that I feel Sammy is doing some stuff right. Keep it up, don't let us users down
Sent from my SPH-D700 using XDA Premium App
My impressions of the modem/rom is they are faking things a little bit on the signal meter as I know the signal isn't that strong in those areas. And it's not like a software update just gives better signal.
I agree that it seems like I'm roaming more on EG22, but the modem doesn't seem to have any effect. For example, I ran the stock EG22 build for a while and noticed the roaming issue and weaker WiFi reception. Reverting to the the EC05 modem didn't seem to help these issues. One of the stores I work in has a WiFi router that I can access throughout the store on Froyo (EC05), but on GB (EF02/EG22), WiFi disconnects when I walk to the rear of the store. Doesn't seem to matter which modem I'm using at the time. I even flashed back to Froyo yesterday but left the EG22 modem installed. GPS, 3G, and WiFi were flawless all day everywhere I went. So it seems that there must me some code/instructions in the build itself that are more relevant than the modem firmware.
Another interesting tidbit is that there basically is no difference in EC05 and EG22 modems. Randy did a binary differencing to generate a patch between EC05 and EG22 and the patch file is 142 bytes, which is probably about enough to change the version name.
I have noticed since the first GB leak that the WiFi reception is horrible now compared to a stock Epic with FroYo.
digiblur said:
I have noticed since the first GB leak that the WiFi reception is horrible now compared to a stock Epic with FroYo.
Click to expand...
Click to collapse
Yes, it makes me wonder if they might have the power to the radios dialed back a bit intentionally to help them diagnose something possibly?
I have noticed the wifi bars being low, but it isn't effecting the speed at all. I consistently get 1.5mbps down/600kbps up when over 3g, and have seen 9mbps on 4g. Call quality seems good as well. As for battery drain? It might be a bit faster than I'm used too, but then again, I'm coming from SRF 1.2. If there are any issues with the TWLauncher, I don't notice them because I'm a LauncherPro user. Issues with the browser? I use Dolphin, so if there are any, again, I don't know. Overall though, this ROM is stable enough for daily use.
Sent from my SPH-D700 using XDA App
thomasskull666 said:
First I'll start off by saying tonight was a really terrible night for me so if this comes off as venting so be it lol.
Samsung, you're getting there that's for sure. Scrolling, screen off/on is buttery smooth and things seem to be working better than I had expected.
With that being said, there is still work that needs to be done. It may just be my location, but with the EG22 modem I feel like I've been roaming more than usual. I flashed back to the EC05 modem just to see and it confirmed my suspicion: either my phone or my area just doesn't like the new modem very much.
Another key component is battery life, it's been pretty sub-par for me. At work I have terrible reception (no bars, even roaming) so I put the phone on airplane mode and the battery is still dropping pretty consistently, much faster than on any of the other leaks or Froyo. Must be a rogue process(es) eating it up, but I can't be sure unless I do some digging which I don't really feel like doing.
All in all it's definitely coming along nicely, but by no means is it phenomenal. But for the first time since DI18, I can honestly say that I feel Sammy is doing some stuff right. Keep it up, don't let us users down
Sent from my SPH-D700 using XDA Premium App
Click to expand...
Click to collapse
Thomas you're awsome. Downlod WoW and come play with me.
Sent from my SPH-D700 using XDA App
I have noticed accidentally yesterday that after I had my stock headphones pluggeed in the Note, the typical curve of the battery drain became much flatter and the different wakes during screen off have almost disappeared. The moment I unplugged the headphones, the battery drain went back to the usual 2-3% per hour on standby.
I am running stock LQ3 and stock kernel. I am rooted, as I have flashed it through Mobile ODIN, over stock, rooted LPY.
I have quite a lot sync-accounts - twitter, facebook, gmail, email, weather widget etc. so I am quite used to relatively short battery life but the trick with the headphones came as quite a surprise.
Before writing this post I decided to test it today as well and it is the same.
So, could someone test this and report? I think that if this proves to be true and common, the devs could easily track what's happening exactly and sort things out, so that battery can live longer without the headphones plugged in.
boboev said:
Before writing this post I decided to test it today as well and it is the same.
Click to expand...
Click to collapse
Maybe before writing this post you should also have asked yourself, Did I develop something here or am I asking a question?
http://forum.xda-developers.com/showthread.php?t=1365099
Wrong section
Ugh...I am terribly sorry, this was meant for the General Discussion. Please, admin, move it there.
I've noticed that same if the SAR of the last samsung mobile is very low, the reception is quite good compared to other phones.
Do you notice also an improvement of the signal reception? Because if it is the case, it is that your headphones are used as a secondary antenna, giving the phone a stronger reception and less power consumption (better signal = less need of power usage for processing the signal)
This is just a theory...
After some ICS ROMs I went back to Gingerbread, mainly due to poor battery life.
When Litening ROM 2.0 was published I flashed that one. I liked the GB version a lot. The battery life was remarkable, a lot better than previous ICS ROMs. Because Litening is not much supported I tried Alba, also LQ3. A surprise because battery life was the same. I think I'll stick to ICS this time.
Opperhoofd said:
I tried Alba, also LQ3. A surprise because battery life was the same.
Click to expand...
Click to collapse
Alba often uses LB2 modem (from GB) in his ROMs - maybe it is the reason. I myself observed huge batterey drain on latest ICS ROMs while connected to Wi-Fi at my workplace. Fixed it by flashing ZCLP5 modem (from early "LP5 leak" ROM).
kitsune44fr said:
I've noticed that same if the SAR of the last samsung mobile is very low, the reception is quite good compared to other phones.
Do you notice also an improvement of the signal reception? Because if it is the case, it is that your headphones are used as a secondary antenna, giving the phone a stronger reception and less power consumption (better signal = less need of power usage for processing the signal)
This is just a theory...
Click to expand...
Click to collapse
Hm, that is an interesting theory. I am not sure, however, that the headphones' cable really improves GSM radio reception. I think it is only for FM reception. Of course I have no knowledge behind that, just thinking.
I have frozen lots or apps in Titanuim Backup like:
- the whole range of SNS's
- Social Hub
- Wi-fi sharing manager
- the infamous wssyncmlnps
- software update service, etc
Also I have stopped a bunch of receivers, using Autorun Manager Pro, and disabled a lot of processes from Autostarts.
This should mean that I have opted out the most common battery drainers. I have tried to disable auto-sync for the time being, but that does not seem to be much of a drainer, so maybe the real problem comes somewhere from the modem.
dimcus said:
Alba often uses LB2 modem (from GB) in his ROMs - maybe it is the reason. I myself observed huge batterey drain on latest ICS ROMs while connected to Wi-Fi at my workplace. Fixed it by flashing ZCLP5 modem (from early "LP5 leak" ROM).
Click to expand...
Click to collapse
Hey dimcus, i've been having this WiFi vs battery issues with some routers(including the one at home), weird enough it doesn't happen on some of them. I did read somewhere about flashing te Modem file, what leads me to a couple of questions ir you don't mind. Are you on ICS? Do i need to be root to flash the Modem file? If not, any risks involved? I'm on stock ICS LPY DBT.
Thanks in advance,
VR
I flashed the ZCLP6 modem earlier today, guessing that it would be better than ZCLP5.
It is too early to judge but first impressions are that maybe there is a slight improvement in battery on 3G but not something worth it over the stock XXLPT that I used to have and generally battery drain on wifi seems as bad as it has been ever since I flashed ICS.
I have read that some people dared to wipe their Notes and after that most of the problems had disappeared but I don't want to risk getting some brick.
I will try several other popular modems and will report back.
Sent from my GT-N7000 using Tapatalk 2
boboev said:
I flashed the ZCLP6 modem earlier today, guessing that it would be better than ZCLP5.
It is too early to judge but first impressions are that maybe there is a slight improvement in battery on 3G but not something worth it over the stock XXLPT that I used to have and generally battery drain on wifi seems as bad as it has been ever since I flashed ICS.
I have read that some people dared to wipe their Notes and after that most of the problems had disappeared but I don't want to risk getting some brick.
I will try several other popular modems and will report back.
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
Hey, did you have the same issues? The orange arrow(th download ONE) keeps going on and off all the time, happened in most routers i've tried. So any help will be more than welcome...
Cheers,
VR
boboev said:
I flashed the ZCLP6 modem earlier today, guessing that it would be better than ZCLP5.
It is too early to judge but first impressions are that maybe there is a slight improvement in battery on 3G but not something worth it over the stock XXLPT that I used to have and generally battery drain on wifi seems as bad as it has been ever since I flashed ICS.
I have read that some people dared to wipe their Notes and after that most of the problems had disappeared but I don't want to risk getting some brick.
I will try several other popular modems and will report back.
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
Please let us know how you get on with them. Currently on LR1 modem and noticing a few strange wakelocks.
I have been with LR1 modem for about 40 hours now. What is better than the ones before is the much better behaviour on wi-fi. Other than that it is hard to tell any differences. So far 7 hours since unplugged, 1 h screen-on, half time wifi, half time 3g - battery is at 75%
Sent from my GT-N7000 using Tapatalk 2
boboev said:
I have been with LR1 modem for about 40 hours now. What is better than the ones before is the much better behaviour on wi-fi. Other than that it is hard to tell any differences. So far 7 hours since unplugged, 1 h screen-on, half time wifi, half time 3g - battery is at 75%
Sent from my GT-N7000 using Tapatalk 2
Click to expand...
Click to collapse
wow.. that;s great.. i upgraded to ICS 5 days ago.. super poor battery..
then I heard to go with speedmod kernel, which I did.
no change..
Can you'se tell HOW TO change the modem?? I need to do something... mine just dont last worth a crap.. half day..
should I try a modem? and can you please say how to do just the modem??.
my baseband is N7000XXLPT
and build # is IML74K.XXLPY
thank you!
Unfortunately after several different ICS Roms (From Stock LPY to Cleanote 2.20) with several different Kernels (Stock, SpeedMod, Goku and more) and few modems (XXLPT, ZCLP5) I had to go back to Ginger due to extremely poor battery life. With all roms /kernels/modems combination the behavior was very similar. The phone was going into deep sleep pretty easily when idle with very low battery drain. On the other hand when using the phone I was getting about 10% drain each 20 minutes (A little less with data wifi and all sync off). I was also getting overheating with temp most of the times over 40 deg C. This drain was almost the same even with system energy savings on. I could not understand the reason for this strange behavior considering that many other users are having great battery life on ICS with their devices. Anyone is experiencing this situation ? NB now with Ginger the battery life is ok.
^ I experience same behaviors...
vessk0 said:
^ I experience same behaviors...
Click to expand...
Click to collapse
Hi
Do you by any chance have a German Note ? Mine is German and I was wondering if all the German notes had the same behaviour ..
Thanks
Battery drain with cm10 paranoid android
I am facing a huge battery drain issue. Used the phone for downloading and playing games and general usage yesterday and battery only lasted 3.5 Hours. Need to continuously watch the battery as it drops about 10-20% on idle. Checked the wakelocks and mainly wifi related, the phone is going into deep sleep just fine. HELP PLEASE!!!
lol continuously watching means you're the wake lock.
btw phone only has 3-3.5 hour screen on time. When playing games its usually less.
All do some reading into analyzing battery life betterbatterystats and cpu spy
Sent with L0VE
Now, I know that we have a "All your JB discussions here" thread, but I think that this one is a rather specific issue and hence should be discussed in a separate thread. I also know this post is rather lengthy, but please read and give your opinions as it's important.
If you look at the last 5 pages on the JB discussion thread, you'll notice that lots of people are complaining about the battery drain due to wifi. The gist of it is that if you forget to turn off wifi before turning your screen off, then you'll experience a battery drain of about 5% an hour even though you're not doing anything with the phone.
I can vouch for the wifi battery drain issue. After flashing DLJ4, doing a factory reset, doing several full charge cycles, etc. here's what I can say:
On ICS, battery drain when the screen is off is the same regardless of whether you leave wifi on or off. Approximately 2-5% overnight
On JB, battery drain when the screen is off and wifi is off is the same as ICS. But if you leave wifi on, it drains about 2-3% an hour.
General battery use on JB otherwise is the same as ICS
It's pretty obvious. You don't even need to use apps to monitor battery use. Anyone can easily tell that there is something about the wifi causing battery drain.
So there are 2 things to note:
1) Wifi strength on JB is much stronger. For example, I could never connect to wifi from the 2nd floor on ICS (the modem is on the ground floor; it always shows poor signal and gives the "authentication error" when I try to connect), but now on JB I can easily do so within seconds of turning the wifi on. And this result is consistent each time I try.
2) With wifi on and the screen on at the same time (eg: when browsing), the battery drain is similar to ICS, ie approximately 1% every 4 minutes.
Point (1) seems to imply that the wifi strength on JB is stronger, and maybe the frequency used is higher. This seems like a pretty good explanation for the battery drain, until you consider point (2). Point (2) seems to indicate that the problem is not in the wifi frequency, as battery drain during screen-on time is similar (you would expect it to be higher), but there is some other explanation.
So my idea is that the wifi is indeed stronger in JB but that doesn't affect battery drain significantly. Instead, the problem lies in the fact that wifi management on JB is just bad. On ICS, when the screen is off, the wifi signals are probably "weakened" significantly, for lack of a more technical term, but on JB it remains at the same "strength" as when the screen is on. This is probably what causes the battery drain.
I'd like to use this thread to see what everyone else thinks from the experience on stock JB roms. And of course, if we can properly identify the cause, surely someone would be able to fix it.
Update 1: Alright, so far it seems that only those on stock kernels have this problem. Those on Siyah kernel appear to be unaffected. I'll test it out soon, and see if it can be a temporary fix for now.
Update 2: So I've been using Siyah kernel 1.7 RC1 for nearly two days now. While the battery drain due to wifi is reduced, it's still not as good as it was on stock ICS. And this is even after I flashed the "better profile.zip". Also, as a side note, the overall battery consumption on Siyah isn't significantly better than the stock kernel. But at least wifi battery draining seems to be less. Do continue posting your experiences so we can find a more viable solution.
Update 3: Over the last few weeks I've tried out DLJ1, DLJ5 and the leaked Rom with multiwindow (can't remember the Rom name). Anyway, from my experience, and from the collective opinions on people who posted here or in other battery threads, it would seem that the WiFi battery drain persists in all these jb roms. The only solution I've had so far was to use Siyah kernel. Some people report that custom roms work too, but I suppose if you're reading this thread it means you're trying to fix a problem with stock jb.
Wifi battery drain is bad on my s3 too. :crying:
I thought it was just some wakelock issue. hopefully the next jellybean update will fix this
I'm on the latest DLJ4 and I had wifi on last night. I unplugged my phone from charger at 3:00am then woke up at 6:30 for work and in that 3.5 hours I had only lost 2% battery, the whole time wifi was running.
Maybe it's kernel related, I'm running Siyah 1.6.8 and I don't seem to have a problem.
Sent from my GT-I9300 using xda app-developers app
I too have this drain issue! I am on stock JB!
Obagleyfreer said:
I'm on the latest DLJ4 and I had wifi on last night. I unplugged my phone from charger at 3:00am then woke up at 6:30 for work and in that 3.5 hours I had only lost 2% battery, the whole time wifi was running.
Maybe it's kernel related, I'm running Siyah 1.6.8 and I don't seem to have a problem.
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I'm on stock kernel. Perhaps I'll try out Siyah kernel, but still there a quite a number of us facing this issue, as you might be able to tell from the original JB discussion.
I've been on Omega since version 25 (now on 31) and I have 0.9% per hour battery drain with WIFI on. I've used BBS and found all of the main drain causes on my phone and stopped them. For instance, I have location services turned off and even disable\freeze maps when the screen turns off (I have a tasker widget to defrost and open it when I want it).
On my phone the OS doesn't have a problem with WIFI battery drain, but various apps and services did until I sorted them.
Edit - my drain is the same despite whether I run stock kernel, Phenomenal or Siyah.
I'm on siyah 1.6.8 and have no decreased battery life.
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disclaimernotice said:
1) Wifi strength on JB is much stronger. For example, I could never connect to wifi from the 2nd floor on ICS (the modem is on the ground floor; it always shows poor signal and gives the "authentication error" when I try to connect), but now on JB I can easily do so within seconds of turning the wifi on. And this result is consistent each time I try.
>>>That is not how i find wifi on any build of JB a stronger signal .
2) With wifi on and the screen on at the same time (eg: when browsing), the battery drain is similar to ICS, ie approximately 1% every 4 minutes.
>> Again nothing like that sort of drain have i seen.
Proper testing from those with no problem is the only way you can prove that WiFi is stronger .
jje
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Oh, my Wi-Fi signals are stronger! :thumbup:
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DeadSOL said:
Oh, my Wi-Fi signals are stronger! :thumbup:
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Well are you sure ? please answer My problem is the WIFI speed su** it always shows no bar or 1 bar all the times and speed is horrible after seeing your comment i think JB update is worth a shot
Maybe we need to add:-
These problems are only on stock jb roms, not flashed kernels or custom roms. A large amount of people on stock firmware on jelly bean have this WiFi drain. Its very obvious on my phone, with WiFi on and screen off, I get around 4-5% drain, with WiFi off and screen off I get about 0.5% drain.
And I thought that this problem on my phone only ... I wanted to do a factory reset, but you say it doesn't help, so no point trying.
With the JB benefits, there are still annoying bugs.
1. When accessing a Settings tab, notice how it opens. There a chubbiness in the Settings app. (tried to clear data etc etc ..).
2. TouchWiz Redraws very frequently.
Other than that, I can't see any problems with the Official JB.
I don't get drain Lj4 WiFi on overnight max drain 2-3 %
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JJEgan said:
disclaimernotice said:
1) Wifi strength on JB is much stronger. For example, I could never connect to wifi from the 2nd floor on ICS (the modem is on the ground floor; it always shows poor signal and gives the "authentication error" when I try to connect), but now on JB I can easily do so within seconds of turning the wifi on. And this result is consistent each time I try.
>>>That is not how i find wifi on any build of JB a stronger signal .
2) With wifi on and the screen on at the same time (eg: when browsing), the battery drain is similar to ICS, ie approximately 1% every 4 minutes.
>> Again nothing like that sort of drain have i seen..
Proper testing from those with no problem is the only way you can prove that WiFi is stronger .
jje
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I know these aren't methodical tests, and they're still quite subjective. But it's pretty obvious to most of us that the wifi is stronger. By the way, what do you mean that you don't see that sort of drain? On ics or jb? Because on both ics and jb, my battery drains about 1% for every four minutes of browsing and I find that normal; pretty good even
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I'd like to add that after I installed the stock jb it wasn't the WiFi I had a problem with it was my network connection with virgin as my signal was very low, about only two bars and my s3 used to get very hot when it wasn't doing anything.
After I left my screen off overnight and checked bbs I found that the main problem causing battery drain was losing connection and bad connection and my s3 got hotter the more it charged.
I tried the Shiyah kernel and flashed the even more battery zip I've notice that I now have a full connection and it hasn't dropped out yet and my battery is draining very slow and my s3 is very cool which I am really happy about.
Edit:After a full cycle the quad core seems to be draining less, seems the Shiyah Kernel is the best Kernel for battery life with Jellybean
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using omega ROM here and its kernel... so far no issue with batt drain.. but i wonder what if i flash siyah kernel, will the battery life get even betteR?
drumhitz said:
using omega ROM here and its kernel... so far no issue with batt drain.. but i wonder what if i flash siyah kernel, will the battery life get even betteR?
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Should try phenomenal extreme
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Yea got the problem too ...if I use my phone on charge it slowly (I mean really slowly) charges...and it takes twice as long to charge my phone. When I returned my phone to stock (ice cream ..etc) it goes back to normal.
But wanna thank this thread hopefully changing kernel will help
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I've just noticed something after using stweaks, if I change to dual core my battery drains slower and the Celsius of the phone is lower but if I have it on quad core my battery drains really fast and the Celsius is much higher.
I read somewhere that it's only the international versions of s3 that have bad battery drain and the other versions use dual core, not sure if that makes a difference.
Also noticed after changing to dual core my s3 only lost 4% over night, I also undervolted the battery a bit.
I installed the wattage widget to see the differences.
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How about folks running stock DLJ1/2?
I had flashed DLJ2 French stock version previously and I feel I had better battery at that time than DLJ4 UK unbranded JB (which I am on right now).
And I dont think we are getting enough complaints about battery life from folks who are running versions other than UK DLJ4 ROM!