Database Users

is it me, or are 2.2 ROM's battery hogs?

I have tried both Eugene's and TeamWhiskey's ROM's.. Ginger Clone, OBSIDAN and ONYX. And all 3 have sucked down my battery in about 12 hours flat with me doing nothing to the phone but loading SystemPanel to monitor the CPU and battery. With all the ROM's the CPU usage has been between 3-10% while in idle. zero phone usage. I have refreshed the battery with every new ROM load.
I was previously using TeamWhiskey's 2.1 Bionix Fusion and was seeing between 1-3% CPU usage at idle and had the battery lasting well over 24 hours with minimal use(checking email, couple short phone calls)
Am I the only one having this issue?? Does anyone else use SystemPanel to monitor their CPU usage and can say what their CPU is using during idle??
Thank you for your time and any help/info you may have.

I don't use the modded versions of Froyo but Stock has awesome battery life from my experience. JL5 is looking great as well.

You or anyone else happen to know where I can find a copy of the stock 2.2 ROM/kernel?? I have an unlocked phone in Japan and it's not supported here, so I wont ever get any updates.

Yes the custom roms have terrible battery life. They always have. However, the stock roms have terrific battery life. After a long day of heavy usage I am at 50%
Sent from my SGH-T959 using XDA App

There isn't really a stock 2.2 Rom for Vibrant because it hasn't been released yet. We have leaked builds (JK2, JK6, JL1, JL4, JL5) that are candidates for release. When they actually release Froyo for Vibrant, that will be your stock froyo rom.

The key to great battery life is using the Stock kernel. Flash that kernel on any ROM and enjoy not having to watch your battery indicator all day.

yea, just read a thread about people complaining about that.
guess I'll just flash back to 2.1..
Thanks for all the help.

I flashed nero v2 w/ voodoo and i reset the battery stats, and now im having trouble draining the battery down to nothing.
Fear the beard...

regP said:
The key to great battery life is using the Stock kernel. Flash that kernel on any ROM and enjoy not having to watch your battery indicator all day.
Click to expand...
Click to collapse
Pretty sure I have flashed the stock kernel.. is there any way to tell what kernel im on? phone just says 2.6.32.9

jayprime said:
I flashed nero v2 w/ voodoo and i reset the battery stats, and now im having trouble draining the battery down to nothing.
Fear the beard...
Click to expand...
Click to collapse
I'll give it a try.. nothing to lose.

To drain the battery, I usually turn on Bluetooth, Wifi, GPS, all the good stuff. Then I downloaded this one Flashlight app from the Market which essentially displays one color full screen, default white. Crank up the brightness and run that app on white and it'll really put the hurt on your battery.
Edit: Today I learned that this may be potentially harmful information. Will someone give a good scientific explanation why though? I'm curious to learn more about batteries. However, this is how I've been draining my battery and it is a damn good method if that's what you want done.

Mine says 2.6.32.9 no matter what kernel i flash. Try flashing it just to be sure. I've tried all the ROMs and they all drain hard until I add the stock kernel to them. Though now a days a lot of ROMs include the stock kernel (Macnut and Axura for sure do). The problem with all the custom kernels is they dont seem to let the phone sleep so when your screen turns off the phone keeps draining as if you were using it. Stock fixes this so when your screen turns off barely any power is used. I
But like I said.. reflash it just to be sure.

regP said:
Mine says 2.6.32.9 no matter what kernel i flash. Try flashing it just to be sure. I've tried all the ROMs and they all drain hard until I add the stock kernel to them. Though now a days a lot of ROMs include the stock kernel (Macnut and Axura for sure do). The problem with all the custom kernels is they dont seem to let the phone sleep so when your screen turns off the phone keeps draining as if you were using it. Stock fixes this so when your screen turns off barely any power is used. I
But like I said.. reflash it just to be sure.
Click to expand...
Click to collapse
You happen to have a link to the stock kernel??

EB-Productions Stock Kernel MOD
*Features*
~ Clock Work Recovery
~ Leaked Stock Kernel
Download > http://www.multiupload.com/ELZHKISZTF
Click to expand...
Click to collapse
Taken from Eugene's site.

to the OP, try axura rom. i have tried all the TW, eugene and axura. axuras the only one who gives me a good batt life
Sent from my SGH-T959 using XDA App

Thats because Axura uses the stock kernel

FDokinawa said:
Pretty sure I have flashed the stock kernel.. is there any way to tell what kernel im on? phone just says 2.6.32.9
Click to expand...
Click to collapse
Android is based on Linux and uses the Linux kernel as a base. The Linux kernel your phone's kernel is based off of is version 2.6.32.9

ok.. think I loaded the stock kernel up.. lol I'll let it run for about an hour and see what kind of CPU numbers I get in idle.
Thanks again for everyones help/input.
FYI.. just put it in flight mode for a bit and CPU usage dropped down to almost 0%.. I'm not understanding why it cant do that when the phone is idle.. ahh well.

Idle for an hour should lose no more than 1% battery depending on how much stuff you have polling and updating.

regP said:
Thats because Axura uses the stock kernel
Click to expand...
Click to collapse
No it doesn't.
regP said:
Mine says 2.6.32.9 no matter what kernel i flash.
Click to expand...
Click to collapse
That is just the version.
That version won't change like the baseband does.

Siyah vs. CM9 Remix | for Resurrection

Hey this is a thread for all the Resurrection lovers out there to discuss what Kernel goes best with Resurrection ROM
I've tried several Kernels by myself but couldn't come to a conclusion which is better in which aspects.
So lets discuss openly the pros and cons of each Kernel
If you have tried any other kernel other than CM9 and Siyah please put your opinions as well.​

Nice post! I'd be interested to see the results from ppl as I just updated to latest 1.7 remix and this time have left the CM9 kernal. I did think about flashing siyah straight after 1.7 package but decided to give CM9 a trial first
Will report in a few days!

deckio007 said:
Nice post! I'd be interested to see the results from ppl as I just updated to latest 1.7 remix and this time have left the CM9 kernal. I did think about flashing siyah straight after 1.7 package but decided to give CM9 a trial first
Will report in a few days!
Click to expand...
Click to collapse
I'm a Siyah fan too but after reading few reviews considered to give a try with CM9 will see how it goes

I'm currently using the stock CM9 with 1.7 and found it to feel pretty good so far, messed up a little yesterday when the phone froze while playing a video.
Before freezing the phone had 50% battery after removing the battery and restarting, the battery had dropped to 15%
I'm still a bit of a noob to all this so go easy
When flashing a new kernel, do I just put the zip on the card and flash?
Or do I need to wipe anything first?

This is my personal opinion, not trying to put anyone down.
Okay tried CM9 Remix kernel for few hours and already fedup :\
I see no better battery life compared to Siyah kernel, in fact CM9 Remix Kernel had lesser support than Siyah.
Lets see;
Siyah -
CWM touch recovery (and full support)
additional cpu governors (lulzactive,smartassV2,etc..)
Overclocking upto 1.6
support for BLN(Back light notifications)
CM9 Remix -
NO CWM touch recover and some of the CWM features are not available
NO additional CPU governors
NO overclocking
NO support for BLN
So for me CM9 Remix kernel isn't the one.
as i have tried Siyah kernel already im going to give Abyss or some other Kernel a try and will update on how it goes

This is a really difficult conversation because there are so many variables.
1) Kernels - each one has configurations so you need to mention what governor you are using and any other mods that you have done to the basic kernal config. Or if you are using it stock without changes you could state that.
2) Apps - all of us have different apps installed and some apps make demands on the system when it is supposed to be "sleeping". Dedicated battery enthusiasts use CPU Spy and Better Battery Stats to try to figure out what is eating the battery all the time. Then they freeze those apps until they are needed.
3) Usage - I'm retired, so I play with my phone a lot....spend an hour a day just reading XDA. I must turn it on at least 30 times between charges. Others have to work, so they put it in their pockets and leave it alone for a while. Some folks play 3D games which consume power like crazy. Using phone data eats more power than wifi. A black background on your screen eats less than a white background... and so on.
So this is not a simple conversation. The more you tell about your situation, the more others can see if it applies to them.
(PS - I´m not talking much about my setup because I'm still on RR 1.1 with Siyah 3.0.1+. I´m trying various governors to see which works best - currently on lutzactive. I'm usually down to around 45% at bedtime which is fine with me.....If I leave the phone alone and just use it as a phone, I can probably go 24 hours.

Siyah: Feature packed, lots of fluff, but very nice options as mentionned earlier.
CM9: Basic, VERY BASIC kernel. Gets the job done and most people sync their base with it.
I personally use CM9 with Siyah, works great.

karendar said:
Siyah: Feature packed, lots of fluff, but very nice options as mentionned earlier.
CM9: Basic, VERY BASIC kernel. Gets the job done and most people sync their base with it.
I personally use CM9 with Siyah, works great.
Click to expand...
Click to collapse
Yeaaa, I agree with You
Siyah Kernel works great with My S2

quijote1 said:
This is a really difficult conversation because there are so many variables.
1) Kernels - each one has configurations so you need to mention what governor you are using and any other mods that you have done to the basic kernal config. Or if you are using it stock without changes you could state that.
2) Apps - all of us have different apps installed and some apps make demands on the system when it is supposed to be "sleeping". Dedicated battery enthusiasts use CPU Spy and Better Battery Stats to try to figure out what is eating the battery all the time. Then they freeze those apps until they are needed.
3) Usage - I'm retired, so I play with my phone a lot....spend an hour a day just reading XDA. I must turn it on at least 30 times between charges. Others have to work, so they put it in their pockets and leave it alone for a while. Some folks play 3D games which consume power like crazy. Using phone data eats more power than wifi. A black background on your screen eats less than a white background... and so on.
So this is not a simple conversation. The more you tell about your situation, the more others can see if it applies to them.
(PS - I´m not talking much about my setup because I'm still on RR 1.1 with Siyah 3.0.1+. I´m trying various governors to see which works best - currently on lutzactive. I'm usually down to around 45% at bedtime which is fine with me.....If I leave the phone alone and just use it as a phone, I can probably go 24 hours.
Click to expand...
Click to collapse
I totally agree with you.
I use my phone very often too. not to play games but to text, listen to music, and i leave the phone data connected always to use IM services.
I'm sure it must be same with any regular user.
I love to play around with my phone as in trying out new stuff on it
This time its the Kernels and OSs that im testing on currently checking Abyss Kernel and already noticed that the soft key lights should be turned on time to time by going to settings :\
will see how well it does in other aspects

melakamc said:
I totally agree with you.
Im use my very often too. not to play games but to text, listen to music, and i leave the phone data connected always to use IM services.
I'm sure it must be same with any regular user.
I love to play around with my phone as in trying out new stuff on it
This time its the Kernels and OSs that im testing on currently checking Abyss Kernel and already noticed that the soft key lights should be turned on time to time by going to settings :\
will see how well it does in other aspects
Click to expand...
Click to collapse
Did you try Siyah with RR 1.7 before going to Abyss? What were your impressions of the usual kernels that you tried? Apparently 1.7 is working well for you?

quijote1 said:
Did you try Siyah with RR 1.7 before going to Abyss? What were your impressions of the usual kernels that you tried? Apparently 1.7 is working well for you?
Click to expand...
Click to collapse
I've been using Siyah with RR 1.2 and 1.5 and battery life came upto 8-10hrs
wanted to try a different kernel and chose CM9 Remix which was in the download section of the RR thread and it was an utter disappointment for ME (others might like it)
refer to my earlier post for results.
currently im testing Abyss and will update on how it goes tonight

which one is the best?

meatlover said:
which one is the best?
Click to expand...
Click to collapse
It depends on user. Im a heavy user and a need freak so CM9 Remix didnt do much good to me trying Abyss at the moment. Await for results

This is very useful and im waiting for updates

AbyssICS (2.6b)
Okay lets see how Abyss worked out for me.
After the utter dissatisfaction over CM9 Remix kernel Abyss was quite impressive with battery consumption.
there's always a BUT
1. the softykey lights were never on even though i change settings, it stays on till the phone display sleeps and even of you turn the screen on again the lights never come back :\
2. Settings -> Storage always keeps force closing and you cant see the stuff in the external SD card even by using a file explorer (root explorer)
3. I didnt like the screen which comes saying some official italian bla bla when you restart the phone that got a very bad design
soooooooo im switching to Siyah-v3.2b4 after seeing its all new cool features and i found a great article on how to get the best out of the kernel
ill share it here : http://forum.xda-developers.com/showthread.php?t=1369817

using cm kernel
got 54 hours earlier with moderate use
haven't had any issue so far been using for 4 or 5 days.

hassanal said:
using cm kernel
got 54 hours earlier with moderate use
haven't had any issue so far been using for 4 or 5 days.
Click to expand...
Click to collapse
WHAT? 54hrs? NOWAY IN HELL
used any tweaks?

melakamc said:
WHAT? 54hrs? NOWAY IN HELL
used any tweaks?
Click to expand...
Click to collapse
No tweaks, but the screen on time suggests that the phone has been on standby most of the time, with no Data.
I always tend to have a fantastic battery performance too when I leave the phone on standby, with no Wifi or Data use.
Regards.

buzzboy said:
No tweaks, but the screen on time suggests that the phone has been on standby most of the time, with no Data.
I always tend to have a fantastic battery performance too when I leave the phone on standby, with no Wifi or Data use.
Regards.
Click to expand...
Click to collapse
That must be it, i use Data connection all the time and my screen is on most of the time

I used the stock cm9 for a while on v1.7 RR and found the battery to last quite well, decided to try siyah 3.1.2 a couple of days ago and day by day it is getting better but not sure its as good as the cm9 yet....gonna stick with it for now and see as it has more options.
Sent from my GT-I9100 using XDA

Need help with Franco Kernel..

Hi.
I have installed PA 3 (15 FEB Build) + Franco Kernel r72 (I heard about people talking about the r80 but i cant find it..).
I have been looking for a guide for this kernel, is the first time I flash one and people says battery life is awesome, but I cant agree with other people. So far I have noticed worst battery life, maybe because the r72 is not for 4.2.2, maybe because I need to do something else apart of flashing the kernel?, I bought the app, and the only changes I have made are some in the screen color and put the max. cpu to less 1188 MHz, i thought that putting it less will give me better battery life but it didn't.
So far I had better battery stats with stock, for example: Last night I completely discharge then charge it full and let it rest the hall night to see how the battery will be.. With franco it jumps from 100% to 85% when i saw it in the morning (I just did a little of web browsing before going to sleep but it doesnt mean 15% less??) and with PA original kernel (They use the stock kernel with some modifications) From 100% to 99%. I mean is a huge difference, maybe I'm doing something wrong or something but that cant be good.
I'm not saying that franco kernel is bad, what I would like to know is, if I need to do some adjustment in the app to get a good battery life. I have heard of undervolting but i cant find a guide for that and franco kernel.
I'm really new to all of this so any help would be appreciate
Attachments: 84% Was when i woke up, cheking all the stuff and taking screenshots then it was 80% you can see it in the attachtments and the phone idle time too.

DrawFist said:
Hi.
I have installed PA 3 (15 FEB Build) + Franco Kernel r72 (I heard about people talking about the r80 but i cant find it..).
I have been looking for a guide for this kernel, is the first time I flash one and people says battery life is awesome, but I cant agree with other people. So far I have noticed worst battery life, maybe because the r72 is not for 4.2.2, maybe because I need to do something else apart of flashing the kernel?, I bought the app, and the only changes I have made are some in the screen color and put the max. cpu to less 1188 MHz, i thought that putting it less will give me better battery life but it didn't.
So far I had better battery stats with stock, for example: Last night I completely discharge then charge it full and let it rest the hall night to see how the battery will be.. With franco it jumps from 100% to 85% when i saw it in the morning (I just did a little of web browsing before going to sleep but it doesnt mean 15% less??) and with PA original kernel (They use the stock kernel with some modifications) From 100% to 99%. I mean is a huge difference, maybe I'm doing something wrong or something but that cant be good.
I'm not saying that franco kernel is bad, what I would like to know is, if I need to do some adjustment in the app to get a good battery life. I have heard of undervolting but i cant find a guide for that and franco kernel.
I'm really new to all of this so any help would be appreciate
Attachments: 84% Was when i woke up, cheking all the stuff and taking screenshots then it was 80% you can see it in the attachtments and the phone idle time too.
Click to expand...
Click to collapse
I did PA3 + franco r80 (test version that you can find on the first thread) last night. This morning I checked the battery drop from 100% to 96% and 6min screen was on.

I can't find the r80, can you give me a link please?
Sent from my Nexus 4 using xda app-developers app

DrawFist said:
Hi.
I have installed PA 3 (15 FEB Build) + Franco Kernel r72 (I heard about people talking about the r80 but i cant find it..).
I have been looking for a guide for this kernel, is the first time I flash one and people says battery life is awesome, but I cant agree with other people. So far I have noticed worst battery life, maybe because the r72 is not for 4.2.2, maybe because I need to do something else apart of flashing the kernel?, I bought the app, and the only changes I have made are some in the screen color and put the max. cpu to less 1188 MHz, i thought that putting it less will give me better battery life but it didn't.
So far I had better battery stats with stock, for example: Last night I completely discharge then charge it full and let it rest the hall night to see how the battery will be.. With franco it jumps from 100% to 85% when i saw it in the morning (I just did a little of web browsing before going to sleep but it doesnt mean 15% less??) and with PA original kernel (They use the stock kernel with some modifications) From 100% to 99%. I mean is a huge difference, maybe I'm doing something wrong or something but that cant be good.
I'm not saying that franco kernel is bad, what I would like to know is, if I need to do some adjustment in the app to get a good battery life. I have heard of undervolting but i cant find a guide for that and franco kernel.
I'm really new to all of this so any help would be appreciate
Attachments: 84% Was when i woke up, cheking all the stuff and taking screenshots then it was 80% you can see it in the attachtments and the phone idle time too.
Click to expand...
Click to collapse
R80 is a test kernel that Franco release a couple days ago. If you ever read the OP, you'll find the link here.
http://forum.xda-developers.com/showthread.php?t=2002782
It's even written in bold letters "Test versions (if you don't know what this is PLEASE don't flash or ask what inside)"
And here's the link from the OP, http://minooch.com/franciscofranco/Nexus4/tests/
From time to time Franco likes to test a kernel that he just implemented before putting it off as a final release. For final nightly release, you can also find the link in the OP. http://forum.xda-developers.com/showthread.php?t=2002782
It's also written in bold letters "DOWNLOAD". There are two kernel versions now. For whatever android version you're using choose the correct link and download the latest one.
Last night, Franco released a nightly (r82) for verison 4.2.2.
You can find it here in the OP like I just told you. There's a .img file to push the kernel via command prompt but there's also a zip file if you click the link when you are in the 4.2.2 download link.
Next time, you should really take your time and read the thread. People will bash or ignore you.
Have fun and good luck!
P.S You're complaining about battery life and I noticed you didn't include that you have tried undervolting the frequencies. Undervolting will help you increase battery life if not a lot it should be an improvement.

scream4cheese said:
R80 is a test kernel that Franco release a couple days ago. If you ever read the OP, you'll find the link here.
http://forum.xda-developers.com/showthread.php?t=2002782
It's even written in bold letters "Test versions (if you don't know what this is PLEASE don't flash or ask what inside)"
And here's the link from the OP, http://minooch.com/franciscofranco/Nexus4/tests/
From time to time Franco likes to test a kernel that he just implemented before putting it off as a final release. For final nightly release, you can also find the link in the OP. http://forum.xda-developers.com/showthread.php?t=2002782
It's also written in bold letters "DOWNLOAD". There are two kernel versions now. For whatever android version you're using choose the correct link and download the latest one.
Last night, Franco released a nightly (r82) for verison 4.2.2.
You can find it here in the OP like I just told you. There's a .img file to push the kernel via command prompt but there's also a zip file if you click the link when you are in the 4.2.2 download link.
Next time, you should really take your time and read the thread. People will bash or ignore you.
Have fun and good luck!
P.S You're complaining about battery life and I noticed you didn't include that you have tried undervolting the frequencies. Undervolting will help you increase battery life if not a lot it should be an improvement.
Click to expand...
Click to collapse
Thanks a lot, and I noticed that part but I didnt think of it. I'm really new to all of this of flashing so this: "(if you don't know what this is PLEASE don't flash or ask what inside)" , just make me focus on the official release in the zips sections
Actually my question is if there's any guide on how to undervolt/increase battery life in this kernel, is the first kernel I've flashed so I dont have experience with voltages and things like that.

DrawFist said:
Thanks a lot, and I noticed that part but I didnt think of it. I'm really new to all of this of flashing so this: "(if you don't know what this is PLEASE don't flash or ask what inside)" , just make me focus on the official release in the zips sections
Actually my question is if there's any guide on how to undervolt/increase battery life in this kernel, is the first kernel I've flashed so I dont have experience with voltages and things like that.
Click to expand...
Click to collapse
There's no official guide. It's actually pretty simple.
But first you will need to find out what type of CPU bin you are using. What is that you say? I will try to explain it with the best of my knowledge.
Well, it's quite obvious that we have the same Snapdragon chip but not quite the same. Each one is somehow made differently based on it's quality. There are a few types, slow, nominal, fast and faster chips. What are the difference? For one, I know that they all have different voltages for each frequency and the quality of the chip will determine how much you can undervolt.
From here I am going to teach you how to find which chip you are using, you can follow this guide on the very very top section of the page.
http://forum.xda-developers.com/showthread.php?t=2048739
Second, you will need to download an app in the Play Store called "terminal emulator" (Link below).
https://play.google.com/store/apps/...251bGwsMSwxLDMsImphY2twYWwuYW5kcm9pZHRlcm0iXQ..
Here's how to find out the CPU bin:
1. Go to the app once you have finished installing it.
2. Type in "SU" to request Superuser root action
3. Type this in: "dmesg | grep PVS" (Without quotation marks) -----> http://forum.xda-developers.com/showthread.php?p=35547734&highlight=terminal+cpu+bin#post35547734
4. Finally, you should get something like this: "[ 0.873920] acpuclk-8064 acpuclk-8064: ACPU PVS: FAST"
5. At the very end of the command, you can see that the CPU quality like above. It's a fast CPU.
If you have a FAST cpu bin like 90% of Nexus 4 owners, you can undervolt up to -100mV just to be safe. You can test it farther but if your phone reboots, that means the value that you have entered is not stable.
Here are some articles on undervolting on android:
http://bigfatreality.blogspot.com/2012/03/guide-to-undervolt-android-safely.html
http://www.android.net/forum/android-rooting/58117-droid-x-guide-undervolting-guide.html
I hope this helped you in some way. Good luck!
P.S In addition to the Franco's test kernels, you can always wait until the official nightly release. Franco releases them when testing is complete. But it's nice to see what in store for us when the official nightly comes out. LOL

What is the best kernel for PA3 (PARANOID ANDROID)

Hello all,
I want to install PA3, and I want to know what is the best kernel for battery performance.
Thanks!

RisingStar1 said:
Hello all,
I want to install PA3, and I want to know what is the best kernel for battery performance.
Thanks!
Click to expand...
Click to collapse
Stock PA and matr1x kernel are both really good, with matr1x the battery life is about 5 hours screen, without screen it is just 1%/2 hrs.
I've tried franco and faux kernel too, but franco was a bit laggish and faux has terrible performance for me...slow ui, lots of framedrop in games...

There is no best kernel. All of them offer something a little different than the other. Some kernels work better with a ROM than others. My advice to to read up on them. Find out what you want out of it. Flash one and run it for a couple days. Make sure you let the battery drain past 20% then charge it without interrupting it. That's the surest way to gain maximum battery saving benefits. Just try them out until you find the one that's right for you. Happy flashing.

its actually made so that you dont have to worry about this stuff. kernel is just a cog. it twists and turns, who cares. unless you know exactly what youre missing of course. :cyclops:

[Q] How to flash the Franco Kernel?

Hello,
I have done nothing to my Nexus 4 so far but I recently noticed that the battery isn't that good. I heard that the Franco Kernel might give more battery life. I don't play any games I just use it for texting, surfing and listening to music. Is the Franco Kernel good for my usage then or would you suggest another kernel?
I found the thread where I can download the Kernel but what is OP, Milestone and Nightlies? How do I flash this Kernel? Do I have to root? I couldn't find any HOW TOs.
Hope you guys can help!
Thanks!

easygoingx said:
Hello,
I have done nothing to my Nexus 4 so far but I recently noticed that the battery isn't that good. I heard that the Franco Kernel might give more battery life. I don't play any games I just use it for texting, surfing and listening to music. Is the Franco Kernel good for my usage then or would you suggest another kernel?
I found the thread where I can download the Kernel but what is OP, Milestone and Nightlies? How do I flash this Kernel? Do I have to root? I couldn't find any HOW TOs.
Hope you guys can help!
Thanks!
Click to expand...
Click to collapse
Yes you will need to unlock your bootloader, install a custom recovery, and root. Then you download the franco kernel zip and flash it through recovery.
OP = original post
Nightly = means the latest build (they are compiled every night, and may have bugs)
Milestone = usually means a complete version (stable releases)

Milestone = stable version
Nightly = newer version may contain bugs
U first need to root your device and download the Franco kernel zip and place it in your extSdCard. Once rooted goto recovery (volume up + home + power) select install zip from external card. Browse to file select then install... And enjoy...
Make sure u know wot you doing. Read first n read alot before any action else you may brick your device.
:*: Neebi :*:

also you can buy the app and it install the flash by itself,
i guess you still need to root
since you don´t game it`s weird to have bad battery, try greenify

easygoingx said:
Hello,
I have done nothing to my Nexus 4 so far but I recently noticed that the battery isn't that good. I heard that the Franco Kernel might give more battery life. I don't play any games I just use it for texting, surfing and listening to music. Is the Franco Kernel good for my usage then or would you suggest another kernel?
I found the thread where I can download the Kernel but what is OP, Milestone and Nightlies? How do I flash this Kernel? Do I have to root? I couldn't find any HOW TOs.
Hope you guys can help!
Thanks!
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Click to collapse
Please search first
http://forum.xda-developers.com/showthread.php?t=2266654
Nexus 4 Guide-Unlock Bootloader, Root, Install Custom Recoveries & Custom ROMs/Kernel
Sent from my Nexus 4

okay I see thanks!
Well I don't play games but I often use 3G Service and that usually drains A LOT of battery. I just want some more screen time when using 3g or WiFi. Does the Franco kernel change that?

easygoingx said:
okay I see thanks!
Well I don't play games but I often use 3G Service and that usually drains A LOT of battery. I just want some more screen time when using 3g or WiFi. Does the Franco kernel change that?
Click to expand...
Click to collapse
Kernels don't do that.
Sent from my Nexus 4 using Tapatalk 2

easygoingx said:
okay I see thanks!
Well I don't play games but I often use 3G Service and that usually drains A LOT of battery. I just want some more screen time when using 3g or WiFi. Does the Franco kernel change that?
Click to expand...
Click to collapse
Your apps will make the biggest difference. Stop apps causing wake locks such as Facebook and anything with auto refreshing/push alerts.
The biggest benefit for me of using Franco is adjusting color profiles. Once you try other settings, you'll never go back to stock colors.
Sent from my iPad 4

easygoingx said:
okay I see thanks!
Well I don't play games but I often use 3G Service and that usually drains A LOT of battery. I just want some more screen time when using 3g or WiFi. Does the Franco kernel change that?
Click to expand...
Click to collapse
Kernels don't change this I'm afraid, and 3G will always use pretty much battery. Wifi on the other hand uses nearly nothing.
If you say you're not a heavy user then Franco's Kernel will be a good one for ya. As it contains hotplugging (meaning it will make the device slower if it's not used but fast when you want it to be)
Slower = more battery conservation.
Also let's you underclock your device. As for example you don't play games so you don't want it at 1512Mhz, you can run it at 1ghz and the time your screen is off lock it to 384Mhz (or a bit higher) which again makes your battery last longer.
It comes to a small downside, that kernel comes with its own app which costs a bit of money. But it's very much worth it as you can tweak it just as you want.
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"unfortunatly" you need root before you can flash this. But there have been very useful links in previous posts, try those!
Then if you've done all that, look into Greenify. You'll notice a difference when using it, trust me
enjoy

Hi easygoingx! i wouldnt recommend you flash franco for now. I have been using franco for 2 months , i purchased the app and everything but lately it's comsuming a lot of battery! it drained my battery a lot with last updates i was getting crazy!
if i were you i'll flash trinity!
i've turned on my phone 30 min ago and my battery is in 98%, with franco it would be by 92%
but if you wanna flash ,first root your phone and put a custom recovery (cwm or trwp) and download the zip to your nexus 4 and flash it from custom recovery.

alvin182 said:
Hi easygoingx! i wouldnt recommend you flash franco for now. I have been using franco for 2 months , i purchased the app and everything but lately it's comsuming a lot of battery! it drained my battery a lot with last updates i was getting crazy!
if i were you i'll flash trinity!
i've turned on my phone 30 min ago and my battery is in 98%, with franco it would be by 92%
but if you wanna flash ,first root your phone and put a custom recovery (cwm or trwp) and download the zip to your nexus 4 and flash it from custom recovery.
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Click to collapse
That's definatly not the cause of Franco, but most propably some other apps rogueing. Try Greenify.
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It's maybe the case with nightlies on particular devices.
I'm not the one to judge on that but on Milestones (Milestone 2 aka latest) there is nearly no battery consumption in idle and I've used Franco since r102 (newest is r136)
In the including pic I had flashed Milestone 2 from Franco, then afterwards changed some values in the app to my liking (aka max freq 1350, min freq 384 etc...) and then left it be for a couple hours and look at the result. Lost maybe 1% over nearly 4 hours. If I leave it on generally over night on wifi + data sync enabled, I lose about 2-3% (depending on the sync times ofc). I sleep approx 6h a night btw
Also feel free looking here and see all the positive comments of people and their battery! (also one of the most active and responsive forum topics around)
Therefore I highly recommend Franco!

Oh now I understand these terms. Thank you guys! I'm considering flashing my phone and change the color settings. I'm really annoyed by those washed out colors!
You know what really annoys me? That when I am on 3g and my screen is locked IT DRAINS my battery SO MUCH. Isn't there any ROM/Kernel that fixes that? I mean the S3 has this even on Stock and unrooted....
Hmm... Somehow my phone gets so warm lately.... I'm kinda worried.

easygoingx said:
Oh now I understand these terms. Thank you guys! I'm considering flashing my phone and change the color settings. I'm really annoyed by those washed out colors!
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Click to collapse
They sure are.. but you can take a pick from like 30-35 presets (using Franco's preset myself). Trust me, the result is just... awesome! (if you prefer AMOLED (cause you refered to an S3, you can also change colors to that, it's in the spreadsheet here (check kernel column to see for your chosen kernel))
easygoingx said:
You know what really annoys me? That when I am on 3g and my screen is locked IT DRAINS my battery SO MUCH. Isn't there any ROM/Kernel that fixes that? I mean the S3 has this even on Stock and unrooted....
Click to expand...
Click to collapse
I doubt that there is a way around the battery drain with 2G/3G/3G+ but just having a different kernel will do miracles concerning battery life. Always feel free to ask this in the thread, maybe someone has a "solution" to your issue.
I don't know how often you're without wifi. But just make a tasker task like I have:
- "if wifi connected (=state)-> Data off"
- "if not wifi connected -> Data on"
easygoingx said:
Hmm... Somehow my phone gets so warm lately.... I'm kinda worried.
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Click to collapse
Don't worry about it too much. The nexus 4 is known for having bad thermal handling inside the phone (read this) but it won't harm your phone in any way.
If however you are still worried just download the kernel and go to "Voltages", just press-25mV a couple times (I recommend 3 or 4x). This will reduce the heat generated from your device. (Yes your device can handle this, even more but I'm not responsible )
Another thing is what is getting hot inside your device, battery or CPU? Franco Kernel Updater (app) has Device Monitor which let's you check the CPU temps. If the CPU gets warm/hot too often or too fast, just reducing the max CPU frequency can help you out (1.5Ghz is "too" much anyway, you'll be fine with a couple steps less )
Hope this helped If you have more questions that I could answer, just quote me