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[Q] Firebird or speedmod kernel

Hello all,
I'm currently running perception 10 and I'm wondering if the included kernel (Firebird) offer better battery performance compare to speedmod (hardcore)
I tought that speedmod was offering better battery performance... but i seem to get better with firebird!
What's your opinion?
Sent from my SGH-I896 using XDA App

Battery
demonte21 said:
Hello all,
I'm currently running perception 10 and I'm wondering if the included kernel (Firebird) offer better battery performance compare to speedmod (hardcore)
I tought that speedmod was offering better battery performance... but i seem to get better with firebird!
What's your opinion?
Sent from my SGH-I896 using XDA App
Click to expand...
Click to collapse
Speedmod would offer better battery becoz of all the battery tweaks in CWM recovery. And many ppl have found it to be better. But whatever Kernel you use, make sure to Recalibrate and wipe battery stats for the best battery life

Thanks man,
I wasn't sure if recalibrating was required after a Kernel Flash... But I was doubting about it, as my battery meter was acting weird today. (went from 75% to 47% in 1 hour... without using the phone lol!)

I've found that Speedmod gives me the best battery life out of any kernel I've flashed (after enabling the tweaks in CWM).

+1 for speedmod

+1 for speedmod

hello -
i'm considering flashing my captivate and i'm trying to learn as much as possible before doing so.
The one thing I'm confused about, do I update the kernel before I flash the ROM or afterwards? I would like to get the speedmod kernel, but just not sure which ROM to use just yet. Could someone enlighten me? Thanks.

kaizer915 said:
hello -
i'm considering flashing my captivate and i'm trying to learn as much as possible before doing so.
The one thing I'm confused about, do I update the kernel before I flash the ROM or afterwards? I would like to get the speedmod kernel, but just not sure which ROM to use just yet. Could someone enlighten me? Thanks.
Click to expand...
Click to collapse
When u flash a ROM it comes with a kernel too. So first load the ROM of ur choice, and then flash the kernel of ur choice.
1. ROM first
2. boot up the phone
3. Kernel next
4. boot up the phone
5. now do all ur stuff
Do NOT flash a new kernel without booting up ur phone atleast once after flashing any ROM.

Kernel/battery issue!

My 2x sometimes overheat and reboot and the battery drain very fast...So I want to know if I install a new kernel I have to do a full wipe...What kernel you my friends prefer to solve the overheat and drain problem?Thanks a lot! Sorry for my bad english!

Please someone help me with this

no need for fully wipe just flash it and use it
use temasek OC kernel it works really well if you use cm7 you can use it

I have the etana kernel.
Temasek kernel drains my battery.

I use the stock rom because I'm little afraid of mess with my phone again...So you guys can tell me one kernel to use with stock rom 2.3.4?

You can try HP Extreme Supersonic 12 Kernel. I'm using it with stock 2.3.4 rom. Awesome!

ciwek90 the battery is going well?And how it go with games?

lg 2x heavily drained battery when in 3g mode or gaming. This is because of hardware issue. temasek or etana kernel work great n decent battery life given limited oc.
Their standby mode battery life is wonderful

+1 for latest etana kernel! Far the best until now!

But can I use etana on stock rom?To install I need do a full wipe?

Best ROM for long battery

As the tittle says, I'm currently running Kingdroid V7.0 which seems to use a lot of battery life.
Now this isn't that much of a problem until now since I'm leaving on a business trip so the main focus for the device is long battery life.
Which ROM would suit me the best in this situation? The stock rom or a custom rom? It needs to be stable and reliable.

I am on stock 4.0.4 and it seems much better, you can also use GB rom during your trip.
Sent from my GT-N7000

I run Stock 4.0.4 with SpeedMod Kernel and I am very pleased with the battery life of this setup..

pair those with k3-13 kernel for 4.0.4,
or speedmod k2-12 for gb and you have even better kickass battery life. I think, could be wrong but gb has longest.
modem is device dependant, but you can change that as well to save battery life.
search development for k2 and modems, k3 is in original.
note : warrantee and root on those, and loss of kies updatability.
note2: with changing roms, prior root and backup efs, dr ketan thread in general o toolbox has good infor for that.
note3: deepsleep is a possible issue on all android, and most of the time cause of battery life issues. It might be wise to use better battery stats and cpu spy for analyzing that. enought theeads on that
Sent from my GT-N7000 using Tapatalk 2

Thanks all I will flash the stock rom then. Currently I have the Notecore v9 kernel, how much will this affect my battery life and is the speedmod kernel that much better? I'm a total noob at this kernel stuff, I barely understand the meaning of it so it's all a bit confusing.
And can I flash a kernel by holding power button, home button and volume up method?
Because with the Kingdroid version you had this setup which lets you choose between kernels that's how I got the notecore kernel I think

Razors123 said:
As the tittle says, I'm currently running Kingdroid V7.0 which seems to use a lot of battery life.
Now this isn't that much of a problem until now since I'm leaving on a business trip so the main focus for the device is long battery life.
Which ROM would suit me the best in this situation? The stock rom or a custom rom? It needs to be stable and reliable.
Click to expand...
Click to collapse
Itz not Rom reponsible 4 battery drainage itz whole system can be more blamable so replace ur kernel....
Use SpeedMod K3-11 kernel along with ur current rom make it much improvement in battery juice lyf...
Njoy....!!!!:good::good::good:

pratikverma28 said:
Use SpeedMod K3-11 along with ur current rom make it much improvement in battery juice lyf...
Njoy....!!!!:good::good::good:
Click to expand...
Click to collapse
So the rom itself isn't whats causing the heavy battery drain but it's all about what kernel you use?
EDIT: If I wish to flash a stock rom does it matter what country I pick? Because I actually live in Belgium so closest would be The Netherlands and they are currently on 4.0.3. If I remember correctly I flashed from GB to ICS with Open Germany, does this matter much?

Razors123 said:
Thanks all I will flash the stock rom then. Currently I have the Notecore v9 kernel, how much will this affect my battery life and is the speedmod kernel that much better? I'm a total noob at this kernel stuff, I barely understand the meaning of it so it's all a bit confusing.
And can I flash a kernel by holding power button, home button and volume up method?
Because with the Kingdroid version you had this setup which lets you choose between kernels that's how I got the notecore kernel I think
Click to expand...
Click to collapse
Volume up + home + power will take you to cwm recovery and you can flash custom kernels using it, but it should be in cwm format not in odin .tar (you will have option to download in both formats in kernel threads). Flashing different kernels sometimes helps in improving battery life.
---------- Post added at 05:03 PM ---------- Previous post was at 04:55 PM ----------
Razors123 said:
So the rom itself isn't whats causing the heavy battery drain but it's all about what kernel you use?
EDIT: If I wish to flash a stock rom does it matter what country I pick? Because I actually live in Belgium so closest would be The Netherlands and they are currently on 4.0.3. If I remember correctly I flashed from GB to ICS with Open Germany, does this matter much?
Click to expand...
Click to collapse
All blame cannot be put on kernel either but changing kernel helps sometimes and it is always recommended to flash your region specific stock firmware only to avoid problems and complications.

jeetu1981 said:
Volume up + home + power will take you to cwm recovery and you can flash custom kernels using it, but it should be in cwm format not in odin .tar (you will have option to download in both formats in kernel threads). Flashing different kernels sometimes helps in improving battery life.
---------- Post added at 05:03 PM ---------- Previous post was at 04:55 PM ----------
All blame cannot be put on kernel either but changing kernel helps sometimes and it is always recommended to flash your region specific stock firmware only to avoid problems and complications.
Click to expand...
Click to collapse
About the region, I think I had CSC lux so which means Luxembourg when I bought it. Which would be weird since I bought it in Belgium. Would it matter that much if I flash stock Open Germany?

thats not true, battery drain can be caused by many things, kernel or rom or aplications.
which is why its good to keep an eye out for those.
edit: or unclean installations.
edit2: single or combination of above.
Sent from my GT-N7000 using Tapatalk 2

seen some pretty good reviews recently on notecore, cant compare thrm myself but you can definately test which one is better on your device, rom, modem combo
Sent from my GT-N7000 using Tapatalk 2

Most drain comes from the modem, the kernel (the cpu governor along other things), and rogue apps (usually ad-supported apps).
Of course some roms have issues with the system UI and such.
So the #1 tip to get better battery, find the modem that's best suitable for your country, also use wifi instead of 3g if you can, but if you're out of wifi coverage, turn wifi off or it will drain even more.

I would drop the latest SpeedMod kernel onto your ROM. Very good battery life on all ICS TW ROMs.
Sent from my GT-N7000 using xda premium

My suggestion for you is cleanote ROM with notecore kernel. The best combination. I get around solid 2 days with nominal usage.

For me i had best results concerining battery consumption with the latest CM9 nightlies and now the CM9 official.
Getting 2 Days out of it with normal eMail-reading a bit surfing the web, quite normal usage.

Would the stock rom in combination with the speedmod kernel give the best results? Can't go back to GB cause I need an application from work which requires me to be on ICS.

Razors123 said:
Would the stock rom in combination with the speedmod kernel give the best results? Can't go back to GB cause I need an application from work which requires me to be on ICS.
Click to expand...
Click to collapse
It depends upon how you use your device and how many battery hungry apps you have.
The only way to truly know the best combination for you is to do the research on the forums and test the combinations yourself.
For me, the best combination is Rocket ROM, with a lot of stock apps removed, and the NoteCore overclocked kernel (as it is optimally undervolted).
Sent from my GT-N7000 using xda premium

I use the milestone 6 with kernel thor, lasts me 2 days, with the screen on for 4 hrs

[poll] what is the best kernel for the official ics ?

hey guys ,, i have finished all my work on viperx but im having difficulties for finding a suitable kernel to use without getting big battery drain ,,please select wisely ONLY according to battery life :angel:

I just tried Noobys kernel apart from stock one, I sometimes get excelent battery life, using almost 5hours of wifi, like 48 hours, but some days i cant get through the day, I think is related to my installed apps..
I wish i had tried more kernels to help you decide which one to use in your ROM, because im actually using Nemesis 2, but happens that i find both (rom+kernel) very stable for everyday use, and want to keep it like that.

rrgrrg said:
hey guys ,, i have finished all my work on viperx but im having difficulties for finding a suitable kernel to use without getting big battery drain ,,please select wisely ONLY according to battery life :angel:
Click to expand...
Click to collapse
IMO, The most important thing to chose a kernel is first it should stable, then good battery life. For include in your ROM I suggest you use the kernel that stable for everyone. As you know, every device has it own limitation, how high it can handle the clock, how low it can handle the voltage.
Why?
Some user dont know what custom kernel is, and what the advantages and disadvantages if using custom kernel. Some user usually flash and use the ROM as it is. If they flash the ROM and the ROM doesnt stable for them, mostlikely they will say something like "The ROM is not stable, I got SOD" or "This ROM is sucks, often reboot by itself". Yes, they will blame the ROM, whereas actually it because their device cant handle the UV or OC kernel.
Also you can write suggestion to use custom kernel to gain more battery life/performance in your ROM's thread.
The users can easily to flash other kernel that they like after they flash the ROM.
Well, this is just my thought. The decisions is up to you
----------------
as for the poll, I choose ZGK v0.1-beta, coz:
- 200/500/700/1000/1100 (OC not too high so it save, 200 as min clock good battery in deep sleep)
- stock voltage (no SOD)
- stable for my old P970, and battery drain is good enough

t0g3 said:
IMO, The most important thing to chose a kernel is first it should stable, then good battery life. For include in your ROM I suggest you use the kernel that stable for everyone. As you know, every device has it own limitation, how high it can handle the clock, howlow it can handle the voltage.
Why?
Some user dont know what custom kernel is, and what the advantages and disadvantages if using custom kernel. Some user usually flash and use the ROM as it is. If they flash the ROM and the ROM doesnt stable for them, mostlikely they will say something like "The ROM is not stable, I got SOD" or "This ROM is sucks, often reboot by itself". Yes, they will blame the ROM, whereas actually it because their device cant handle the UV or OC kernel.
Also you can write suggestion to use custom kernel to gain more battery life/performance in your ROM's thread.
The users can easily to flash other kernel that they like after they flash the ROM.
Well, this is just my thought. The decisions is up to you
----------------
as for the poll, I choose ZGK v0.1-beta, coz:
- 200/500/700/1000/1100 (OC not too high so it save, 200 as min clock good battery in deep sleep)
- stock voltage (no SOD)
- stable for my old P970, and battery drain is good enough
Click to expand...
Click to collapse
that is what im thinking of , but i need the best out of the kernel ,, hellmanor will help me out on this and with god's will i will release my rom next week probably :victory:

I was using Hellmanor's kernel for some days (Toccata 0.3) and the very was excellent!!! No problem with stability, always go in deep sleep.
Right now Im testing Adagio 0.1a hv
Sent from my LG-P970 using Tapatalk 2

is the viper ROM included any v30c stuff? or only v30b
this time plz release only after thorough testing with all fixes..
Sent from my LG-P970 using xda premium

srikanth_kande said:
is the viper ROM included any v30c stuff? or only v30b
this time plz release only after thorough testing with all fixes..
Sent from my LG-P970 using xda premium
Click to expand...
Click to collapse
currently my rom is based on marvel d ,, i hope N00BY release a deoxeded v30c repack

removed

i think this week i will release my rom ,, it will be using Heuxxx Kernel :good: if he agrees ,if not i will use adaigo stable Hv :fingers-crossed:

ROM & Kernels ?

I am newbie so please forgive me, Can some one please explain to me what a kernel is and why it matter?
Also say for example I install Werewolf CM10.1 ROM does the kernel also change to WerewolfJB automatically?
Sent from my LG-P880 CarbonRom

Yes because CM Roms run on different kernels and cant be used on stock or stock based kernels. And wise versa. And Kernels are...well not sure how to explain it. Let me try it. Is basically like a transmission. So better the transmission is so better runs and shifts the car. That's basically on a phone the same. Yes the processor is important but the kernel is what makes everything run like it should. I installed a costum kernel because the original one was so bad in battery life and this costum kernel is much better optimized. No more 10 or more % battery drain in standby in an hour. Battery life was pretty terrible on this phone now it is like a fully new phone with ok battery life.
Sent from my LG-P880 using Tapatalk 4

dimension3000 said:
I am newbie so please forgive me, Can some one please explain to me what a kernel is and why it matter?
Also say for example I install Werewolf CM10.1 ROM does the kernel also change to WerewolfJB automatically?
Sent from my LG-P880 CarbonRom
Click to expand...
Click to collapse
The kernel is the core-engine all other software runs on. To make an analogy with a car:
The chassis of the car is the phone, the engine is the kernel and the body is the ROM. This is not a very accurate analogy, but I hope you get the point.
Different kernels focus on different keypoints. Some are very battery-friendly, some favor performance, some offer extra functionality to the system, etc..So there is not a one-size-fits-all perfect kernel.
ROM's are usually based on a certain structure, which the kernel has to support. So for a stock ROM you need a different kernel then for a CM ROM. Most ROM come complete with a kernel, a few don't. So if you flash a ROM which contains it's own kernel you overwrite the kernel that is on your phone. So let's say you've got the Optimus Prime kernel and then install the latest CM build, you overwrite your OP kernel and have to re-flash it after installing the ROM to get it back.In your case the Werewolf CM10.1 ROM comes complete with the Werewolf kernel.
Hope this answers your questions.