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Q. Kernel battery life.

So I've compared stock roms with stock kernel and netarchy and ogs and I'm getting much worse battery life with the cooked kernels. The phone runs hotter too. I don't overclock or anything, just want to use them to fix the colors. am I doing something wrong or is there a solution? Stock kernel gives great battery life on 2.3.4.
Sent from my Nexus S using XDA App

What do you mean to fix colors?
Anyway I used many cooked kernels with the Evo and each had it's drawbacks - many had worse Battery life than stock, and many were unstable. In my experience, stock worked best. ( I am talking about real world usage here, not test scores.)

ronnienyc said:
What do you mean to fix colors?
Anyway I used many cooked kernels with the Evo and each had it's drawbacks - many had worse Battery life than stock, and many were unstable. In my experience, stock worked best. ( I am talking about real world usage here, not test scores.)
Click to expand...
Click to collapse
Stock colors became washed out after release of 2.3.3 update. Voodoo control with a compatible kernel lets you adjust the colors. I hear people say they get even better battery life after flashing one of the other kernels but I don't know how they're getting that.
Sent from my Nexus S using XDA App

no love for nexus s4g

Wow is it just me or the samsung epic forum has more roms than we do here this forums is dead

cal4877 said:
Wow is it just me or the samsung epic forum has more roms than we do here this forums is dead
Click to expand...
Click to collapse
A community is not measured by the quantity of ROMs available. What are you looking for that you are not finding?

Something fast stable and sexy it seems that all roms here have the stock look

cal4877 said:
Something fast stable and sexy it seems that all roms here have the stock look
Click to expand...
Click to collapse
go with miui its fast stable and sexy just what u asked for

I think the main reason these forums seem dead to you is because on the Nexus line you're already receiving the latest and greatest.
Most ROM's for other devices either
Try to emulate the stock Google experience by removing the manufacturer's UI
Remove carrier bloatware
Provide a newer version of Android that the manufacturer doesn't.
Enable features left out by the manufacturer or the request of the carrier
None of those issues apply to the Nexus line, which is why you see a lot less ROM's however what we lack in quantity is most likely made up in quality!

jackslim said:
I think the main reason these forums seem dead to you is because on the Nexus line you're already receiving the latest and greatest.
Most ROM's for other devices either
Try to emulate the stock Google experience by removing the manufacturer's UI
Remove carrier bloatware
Provide a newer version of Android that the manufacturer doesn't.
Enable features left out by the manufacturer or the request of the carrier
None of those issues apply to the Nexus line, which is why you see a lot less ROM's however what we lack in quantity is most likely made up in quality!
Click to expand...
Click to collapse
Could not have said it any better! +1
Sent from my Nexus S 4G using XDA App

Well said my man well said!!

there are several kernels that add functionality to the stock roms. BLN and VOODOO are two things that make this phone really shine.

thedudejdog said:
there are several kernels that add functionality to the stock roms. BLN and VOODOO are two things that make this phone really shine.
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Click to collapse
Ok so im new to the nexus line and to this phone, upgaded yesterday. anyway, could u tell me what those are? what is BLN? what is VOODOO? whats the current best kernel(keep hearing about matrix)(please atleast same or better performance as stock and same or better battery life), what does CM add above the stock nexus?
Thanks for your answers, sorry i couldnt hold my mouth shut anymore
~ Ramy

Master Ramy said:
Ok so im new to the nexus line and to this phone, upgaded yesterday. anyway, could u tell me what those are? what is BLN? what is VOODOO? whats the current best kernel(keep hearing about matrix)(please atleast same or better performance as stock and same or better battery life), what does CM add above the stock nexus?
Thanks for your answers, sorry i couldnt hold my mouth shut anymore
~ Ramy
Click to expand...
Click to collapse
Trinity is my favorite kernel, you can find it in the nexus a section.
Bln=bottom light notification.
Voodoo= sound drivers and screen color. You need
the voodoo control app to change those.
Sent from my PC36100 using XDA Premium App

Voodoo has to do with sound for your headphones. Basically lets you change the music settings to sound better with higher end headphones.
BLN backlight notification. Since the ns4g comes with no led, bln uses the 4 keys on the face of the phone. Say when you get a text the screen stays off and the keys light up. Also we use bln from the market to make them blink and set how long they stay on for.
BLD backlight dimmer. Say your watching a movie, without bld those same 4 keys as above stay on as long as your screen is on. With bld they turn off after 30 seconds or what you set it at. This works as long as you don't use those 4 keys, of you touch one the time starts over.
Sent from my Nexus S 4G using XDA App

Matr1x kernel I think has better battery life. Performence is awesome also. I get atleast 12hrs with about 4hrs of screen on time and heavy use. Plus matr1x has a great dev with awesome support.
Sent from my Nexus S 4G using XDA App

Ok excellent, so u guys answered my definition questions, now my question is concerning 2 things: 1. Kernel: i need a kernel that has atleast the same or better batterylife, and atleast the same or better performance. it is my understanding that matrix is undervolted and overclocked, and so might be just the thing for me, being better on battery and better on performance, unless those negate eachother...what do u think?, 2. Cyanogenmod. what does cyanogen bring to the table/add vs stock rom? as in why would i put on a custom rom rather than stock? would love to hear views.

Matr1x has just as good or better battery and better performance than stock cause of the options it has.
I think one of the main reasons why people use custom roms on the ns4g is for custoization. Like cm7 and decks both have more themability and options. As miui is a completly different look feel just everything. Think iphone when you think of miui.
Sent from my Nexus S 4G using XDA App

[Q] Gingerbread or Ice Cream Sandwich?

I was wondering what the pros and cons were for Gingerbread vs Ice Cream Sandwich.
Someone recently told me I should update to Ice Cream Sandwich from Gingerbread 2.3.6.
All feedback is much appreciated!

In before you get flamed with use the search!!!! Its all personal preference man. Try out GB and ICS roms see what best suits you.
Sent from my SGH-T959V using xda app-developers app

Hey Jacob said:
I was wondering what the pros and cons were for Gingerbread vs Ice Cream Sandwich.
Someone recently told me I should update to Ice Cream Sandwich from Gingerbread 2.3.6.
All feedback is much appreciated!
Click to expand...
Click to collapse
I prefer Peanut Butter and Jelly. Seriously, go read some stuff in this forum.
Sent from my SGH-T959V using xda premium

I was wondering what the pros and cons were for Gingerbread vs Ice Cream Sandwich.
Click to expand...
Click to collapse
If you are particular with the wifi calling features and battery life, you can stick on GB as it's good at that point but if you want fancy looking and customization
go grab some ICS flavor specially AOKP as it features a lot.. just make sure to read this http://forum.xda-developers.com/showthread.php?t=1470716 before flashing ICS it will help you a lot and save you from headache.. now take some time to read and good luck..

Warrenforfree said:
If you are particular with the wifi calling features and battery life, you can stick on GB as it's good at that point but if you want fancy looking and customization
go grab some ICS flavor specially AOKP as it features a lot.. just make sure to read this http://forum.xda-developers.com/showthread.php?t=1470716 before flashing ICS it will help you a lot and save you from headache.. now take some time to read and good luck..
Click to expand...
Click to collapse
I used lumin30's post to flash my phone before, the thing is I'm not sure where to look to find out the proper way to upgrade to ICS.

Hey Jacob said:
I used lumin30's post to flash my phone before, the thing is I'm not sure where to look to find out the proper way to upgrade to ICS.
Click to expand...
Click to collapse
Technically there isn't really a "proper" way to upgrade to ICS on our phone, as Samsung stopped releasing official firmware upgrades after Gingerbread.
If you used lumin's post to flash your phone, you should already have CWM, so all you have to do to upgrade to ICS is flash CyanogenMod 9 or AOKP through recovery (or your ICS ROM of choice, I know a lot of them require you to already be on CM9 or AOKP before flashing though).
Keep in mind though that once you're on ICS, you have to one-click back to stock to go back to Gingerbread. Also, as mentioned above, battery life isn't the best on ICS and you won't have access to wi-fi calling. But with ICS you do get the latest and greatest (for our phone) and a lot more customization.

Do not feed the troll!
Sent from my SGH-T959V using xda premium

Hey Jacob said:
I was wondering what the pros and cons were for Gingerbread vs Ice Cream Sandwich.
Someone recently told me I should update to Ice Cream Sandwich from Gingerbread 2.3.6.
All feedback is much appreciated!
Click to expand...
Click to collapse
Battery Life is the main reason gb is better you may miss some other features like 4G but you'll gain many others in return like dramatically improved performance.
I say wait till bhundven and his team finish the Aries kernel before you switch so you have a solid upgrade you won't regret. You'll love ics at first but unless you don't use your phone that much you'll miss roms like Valhalla black for their great battery. This is why there's been a recent mass - GB migration from ICS.
Sent from my SGH-T959V using xda app-developers app

lonoguge said:
Battery Life is the main reason gb is better you may miss some other features like 4G
Click to expand...
Click to collapse
Explain yourself please, if your saying ICS does not have 4G then you are wrong.
Edit: Actually T-Mobile doesn't have 4G, they have 3.5G

th3controller said:
Explain yourself please, if your saying ICS does not have 4G then you are wrong.
Edit: Actually T-Mobile doesn't have 4G, they have 3.5G
Click to expand...
Click to collapse
You're right ics roms don't show 4G but they run it. On that topic, tmobile actually has an advantage for not supporting Lte because it means they can support quad core phones like the newly coming htc one x +
Sent from my SGH-T959V using xda app-developers app

lonoguge said:
Battery Life is the main reason gb is better you may miss some other features like 4G but you'll gain many others in return like dramatically improved performance.
I say wait till bhundven and his team finish the Aries kernel before you switch so you have a solid upgrade you won't regret. You'll love ics at first but unless you don't use your phone that much you'll miss roms like Valhalla black for their great battery. This is why there's been a recent mass - GB migration from ICS.
Sent from my SGH-T959V using xda app-developers app
Click to expand...
Click to collapse
Thanks for this. Any idea when the kernel will be done?

First off, the "ICS has crappy battery life" is hardly an etched-in-stone thing. Many of us, who have taken the time to understand what is consuming battery, have more-than-acceptable battery life on ICS. Keep in mind though that each subsequent Android release has more "features" which will, in general, mean more CPU/GPU power required to use them, as well as Google bringing along more and more data requirements in their apps and services.
Second, Aries isn't going to "magically" solve anything, especially when it first comes out. While it may be better than the current kernel in some respects, it is likely to be worse in others, at least until we can find the issues and resolve them. It is important to remember that for many people the biggest changes that can be made to improve battery life is what applications you are running and how, not a kernel or a ROM.
As far as when, when its done. You can follow the CM9 dev thread for updates, but you won't find any promises as to when it is ready to be a "daily driver." While I flash Aries pretty regularly, I also have Heimdall at the ready, as well as several other ROMs and kernels available for when I need something that I can trust to use as a phone.
I wouldn't hold off on trying the ROMs that are available for the SGS4G at this point in time, GB and ICS both, and decide for yourself. Try them for several days each. While some ROMs I have tried I just haven't liked the UI and know I won't like them from that, knowing how a ROM performs as far as stability and battery life go, you can't really tell until you've had it running for a week or so after the novelty of the new ROM wears off and you start just using it as you usually do.

My biggest battery drain turned out to be obsessively searching for a battery drain solution on the xda app.

My battery is lasting for days now, even overnight, and, in bad reception areas.
My phone and WIFI service are spotty, in and out, all day in my office.
Biggest improvements:
fresh SD card.
refresh battery stats
flush cache
flush dalvik
fix permissions
let wifi sleep during sleep.
kill DSP and Google apps running
Once the phone runs for a day and a half rebuilding itself, battery had less drain, and boots very fast.
c'est la vie

Regarding battery life....if you want to be able to install whatever apps and not run batterystats and be selective about what your phone is doing and get great battery life then run GB. I have flashed and run every ROM since the Robbit / Team Whiskey days and for the average user ICS roms will not give the battery life a GB ROM will when running the same apps and services. I've had two SGS4's for 2 years and it's been the same for both of them. For the record the best legitimate battery life I ever got (meaning I'm running phone without tweaking certain apps and services to turn off etc...) was Dsex's original ICBINB with his original UV settings from that thread. I constantly had 3+ days of battery life on both phones...it would lose less than 1% in 10 hours of standby.
I love the ICS ROM's and understand that people are passionate about them considering all of the work that Team Acid and the likes have put into them....I am too. I work at a computer all day and my phone sits on charge so battery life isn't really an issue for me....as stated in other threads the only thing keeping me on GB is the busted voodoo sound on ICS.
On ICS ROM's I'm getting 10 to 11 hours (which I do consider acceptable ), tops, without messing with the phone to extend battery life. Flash back to any GB ROM and I'm getting 18 to 20 with the same apps and usage. I'm not dissing ICS, just being honest.
Sent from my SGH-T959V using xda app-developers app

htaak said:
Regarding battery life....if you want to be able to install whatever apps and not run batterystats and be selective about what your phone is doing and get great battery life then run GB. I have flashed and run every ROM since the Robbit / Team Whiskey days and for the average user ICS roms will not give the battery life a GB ROM will when running the same apps and services. I've had two SGS4's for 2 years and it's been the same for both of them. For the record the best legitimate battery life I ever got (meaning I'm running phone without tweaking certain apps and services to turn off etc...) was Dsex's original ICBINB with his original UV settings from that thread. I constantly had 3+ days of battery life on both phones...it would lose less than 1% in 10 hours of standby.
I love the ICS ROM's and understand that people are passionate about them considering all of the work that Team Acid and the likes have put into them....I am too. I work at a computer all day and my phone sits on charge so battery life isn't really an issue for me....as stated in other threads the only thing keeping me on GB is the busted voodoo sound on ICS.
On ICS ROM's I'm getting 10 to 11 hours (which I do consider acceptable ), tops, without messing with the phone to extend battery life. Flash back to any GB ROM and I'm getting 18 to 20 with the same apps and usage. I'm not dissing ICS, just being honest.
Sent from my SGH-T959V using xda app-developers app
Click to expand...
Click to collapse
Busted Voodoo sound you say? What does that entail?

Omg! This thread again!
Same battery, looks, Wifi Calling, fast, smooth, etc... Description, discussion and comparison. It's ridiculous.

Hey Jacob said:
Busted Voodoo sound you say? What does that entail?
Click to expand...
Click to collapse
It doesn't work. Seems like it's working up until you make or receive a phone call then the analogue volume quits working. Also sound continues to be heard through handset speaker when headphones are plugged in.
When I first went back to GB my wifes SGS4G was still on CM9 I did a direct comparison of the audio on both phones and it was obvious that voodoo sound wasn't doing what it should on ICS even after a reboot when the analogue slider is working. There is noticeable distortion at higher levels, the noise floor is audibly higher and the phone just plain won't go as loud. If you have 2 phones to A/B compare the difference is very clear.
Sent from my SGH-T959V using xda app-developers app

TwitchyEye said:
My biggest battery drain turned out to be obsessively searching for a battery drain solution on the xda app.
Click to expand...
Click to collapse
funny

htaak said:
It doesn't work. Seems like it's working up until you make or receive a phone call then the analogue volume quits working. Also sound continues to be heard through handset speaker when headphones are plugged in.
When I first went back to GB my wifes SGS4G was still on CM9 I did a direct comparison of the audio on both phones and it was obvious that voodoo sound wasn't doing what it should on ICS even after a reboot when the analogue slider is working. There is noticeable distortion at higher levels, the noise floor is audibly higher and the phone just plain won't go as loud. If you have 2 phones to A/B compare the difference is very clear.
Sent from my SGH-T959V using xda app-developers app
Click to expand...
Click to collapse
I noticed the sound as well. I just flashed to ICS and I have no idea how to access my contacts. Help is appreciated.

Getting a g3 a few questions

I'm grabbing one for my daughter today and she is going to want me to root, and flash a custom rom.
How stable is 4.2 and 4.3?
What roms/kernel combinations give the best battery life?
It's been a long time since I've used Odin "I think it was my galaxy s4g" since I've used it. The YouTube video under the how to post makes it look pretty easy.
Sent from my Nexus 4

4.2 is pretty stable, although the trade off is shaky WiFi to 3g to 4g hand offs.. Its pretty much the same for 4.3 ROMs as well.. 4.2 is a little more polished compared to some of the small bugs that still are being worked out in 4.3 ... Both are 100% better then touchwiz IMHO. Hope that helps.
Sent from my SCH-I535 using XDA Premium 4 mobile app
---------- Post added at 10:20 AM ---------- Previous post was at 10:18 AM ----------
Just use the stock kernals that come packed in cm 4.2 or 4.3.. And battery like in 4.2 is on par if not better than stock touchwiz.. 4.3 has a bit to go in that category
Sent from my SCH-I535 using XDA Premium 4 mobile app

Tunderpimp said:
I'm grabbing one for my daughter today and she is going to want me to root, and flash a custom rom.
How stable is 4.2 and 4.3?
What roms/kernel combinations give the best battery life?
It's been a long time since I've used Odin "I think it was my galaxy s4g" since I've used it. The YouTube video under the how to post makes it look pretty easy.
Sent from my Nexus 4
Click to expand...
Click to collapse
What you're asking is a very subjective question. I'd say most of the roms are nice to run and it really matters what features you and your daughter are looking for. AOSP offers a pure Google experience, but you're missing out on some great features touchwiz has to offer. There are good things associated with both options that might weigh you to one side or another.
Basically, I think factors that affect battery life the most aren't rom and kernel related, but applications running on your phone. I find any custom kernel you run will operate more efficiently than a stock kernel. You may notice a slight increase in battery life, but you'll definitely notice a boost in performance.
I'd recommend not relying on what people tell you are good roms, because everyone is going to have a different experience as to which is the best, you're basically going to get a bunch of answers to the same question. Even though our phones are the same, minor hardware and cpu differences could make one rom spectacular on one phone, and cause lag and frustration on another. Trying out roms and playing with them is part of the experience of finding the perfect balance between battery life and performance for your phone.
Odin is extremely easy to use, just follow the directions exactly as stated and you shouldn't have any issues.
Sent from my SCH-I535 using Tapatalk 2

I understand what you're saying I know with my phone Franco kernel only runs one core when the phone is a sleep and two with the ui and trinity is full performance. I wasn't sure if there was something like that here.
How stable stuff is really isn't a opinion.
Sent from my Nexus 4.

Tunderpimp said:
I understand what you're saying I know with my phone Franco kernel only runs one core when the phone is a sleep and two with the ui and trinity is full performance. I wasn't sure if there was something like that here.
How stable stuff is really isn't a opinion.
Sent from my Nexus 4.
Click to expand...
Click to collapse
You have a good premise, but stability is also linked to user error most of the time, unless you're talking about AOSP nightlies. If someone tells you they had a horrible experience on a certain rom, it's hard to take their word for it because you have no idea what other modifications they made to a rom, or if they followed flashing procedures correctly. It's not fair to the developer of a rom to have somebody who messed up their phone talk badly about it. It steers away a potential user from a rom choice and frustrates developers who put countless hours into their rom.
As far as your kernel question goes, I would look at the governor options available as that's what controls your cpu. You can gear any kernel to be more efficient or battery friendly with an app like set cpu. Ktoonsez and zues kernel have many governor choices available, as lean kernel would be much more stock like, but leaner. A governor such as pegasusq will control both your cores and only turn your second on if needed.
Sent from my SCH-I535 using Tapatalk 2

[Q] Improving rom

I know the n5 on cm11 is very fast, but I just wanted to know is there any little tweaks to make the rom even better / faster?

dhalham said:
I know the n5 on cm11 is very fast, but I just wanted to know is there any little tweaks to make the rom even better / faster?
Click to expand...
Click to collapse
Tring another custom rom can improve the user experience for instance
Some ROMs have a mod to improve the scrolling cache. You can also add some tweaks / features through Xposed, flash a custom kernel and so on... A lot of things to try actually ^^

Hmm better anything to improve performance or smoothness?

a different rom and kernel than cm. i wouldnt ever call cm fast or on top in performance. cm is more bloated then anything else. but if all youre looking for is mods, then cm is good.

Reduce animations, f2fs.
Sent from my Nexus 5 using Tapatalk

Already have , I was just wondering how to get of the very little lags that come now and then

dhalham said:
Already have , I was just wondering how to get of the very little lags that come now and then
Click to expand...
Click to collapse
go away from cm

Why? Is other roms drastically faster?

AOSP!

If they are much better, can you tell me why? Also, would you recommend me any rom

dhalham said:
If they are much better, can you tell me why? Also, would you recommend me any rom
Click to expand...
Click to collapse
It's a nexus device. Just use stock. It's a good as it gets.
Sent from my Nexus 5 using XDA Free mobile app

jd1639 said:
It's a nexus device. Just use stock. It's a good as it gets.
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
Not true. Google's ROM is optimized for certain uses, mainly just general use. Different custom ROMs are developed for different types of uses.
One reason there are no best ROM threads allowed. Different users prefer different ROMs because they use their phones in different ways. It is also part of the fun of experimenting. You can see how different ROMs react to your personal usage and most people usually settle with the one that fits them best, except flashaholics. Had my phone less than a month, went through about five ROMs, 4 custom and stock. Finally settled on slimkat as I like the features.
This also holds true for kernels.

If you want a rom that's basically stock with a few improvements in key areas with great performance and batt life, I suggest going Purity Rom + Code Blue. The kernel is optional as it also works well with Franco