Hi,
Quick question I am still having trouble wrapping my head around the concept about kernels. I am planning to root my nexus 4 and flash a custom rom (purity rom) but am i required to also flash a custom kernel? Or am I suppose to leave the kernel as is?
Thanks!
Next123 said:
Hi,
Quick question I am still having trouble wrapping my head around the concept about kernels. I am planning to root my nexus 4 and flash a custom rom (purity rom) but am i required to also flash a custom kernel? Or am I suppose to leave the kernel as is?
Thanks!
Click to expand...
Click to collapse
Depends upon your requirement .
As an example i use Fast USB charge a lot and is not available in any custom rom .
I also use Headphone volume boost which is yet again a kernel level change.
I would suggest you to use a custom kernel since it also gives better battery than stock .
If you are happy without it then forget about kernels . And in case u plan on flashing one make a CWM backup just in case.,
You could if you want to since you're already flashing custom roms. However, most custom rom come with custom kernel, so when you flash a custom rom it will replace your kernel with it's own. You can manually flash back your stock kernel if you want, using fastboot, but there is a flashable package as well in the Dev section.
Just know that due to codes and drivers, different kernels work with different roms. If you flash a 4.3 kernel to a 4.4 rom, it might lack certain necessary driver, such as PRIMA, so your wifi will no longer work. (You can fix this by flashing dePRIMAtor). CyanogenMod use Code Aurora Forum drivers, so if you use a kernel that doesn't support CAF, the screen colors will be messed up (you can lash a colorfix package which replace it with the non-CAF liboverlay.so).
A lot of people get wrapped too far up into flashing kernel and thinking it determine everything (performance + battery life) in their phone. As much of a heavy flasher that I am, I am willing to bet that you generally get the best battery life and stability just running stock. I did my own trial for this, with stock rom and kernel, the phone staying cooler and screen on time was longer. This is just my personal experience, it varies for each person.
But I mainly use custom kernel for features. Such as kernels that incorporate Faux color and sound, this allows changing their settings for much a better screen color and making the speaker louder. I also use the sweep2wake/sleep feature to turn on and off the screen.
If you intend to use custom kernels, I recommend using TricksterMod, it's the best app for modifying kernel settings.
Also just to mention this ahead of time, it's against XDA rules to make threads about what is the best rom/kernels.
after flashing alomost all the possible roms for i9500, i noticed that any CM/AOKP/AOSP/PA roms gives very bad battery life.
i can actually see the % coming down as i use it very lightly that too.( just using gallery, File manager, SMS ,etc) :crying:
but this is not the case when i use a stock or stock based ROM. Stock gives amazing battery.
i even tried many different kernels, still no use,
is there any way i can get max battery life ( like stock) thru any of the CM/AOKP/AOSP/PA roms? if so which ROM and which kernel
cz i like the CM looks and easiness in functioning much better than stock . and i would like to use 4.4.3 or 4.4.4
Currently Running
Stock 4.4.2
KOT49H.i9500XXUFNC1 build
stock kernel
ROOTED
Baseband- i9500DDUFNA4
[Q&A] [KERNEL] [INT'L][AOSP/TW/GE - 4.4/4.3/4.2][07/12/2014] KT-SGS4 - NAE - KTweaker
Q&A for [KERNEL] [INT'L][AOSP/TW/GE - 4.4/4.3/4.2][07/12/2014] KT-SGS4 - NAE - KTweaker
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer. Thanks for understanding and for helping to keep XDA neat and tidy! :smile:
Which one shouldI choose with this ROM?
Hi, I was wondering if I should choose the Kitkat 4.4.4 AOSP kernel or the GPE kernel with this rom:
http://forum.xda-developers.com/showthread.php?t=2557353
Thanks in advance for answering!
Anyone?!
Does anyone know this?
It doesn't matter anymore
It doesn't matter anymore, I found out which one. You need the Google play edition 4.4.4 and not the AOSP 4.4.4
In the end it was actually not that difficult, so I'm sorry for posting this "not that smart" question without reading a lot.
Random Reboot
Hi, i have installed this kernel using the setting in your script V6.
I have random reboot.
I use it on galxy s4 with google edition rom.
I hope you can help me, sorry for my english and i hope that what i have written is correct.
Thank you
Hi at all. I'm searching a post on XDA (I can't find it for now) where are explained all governor's parameters like block_cycles_offline_screen_on or boost_hold_cycles and ALL others.
Inviato dal mio GT-I9505G utilizzando Tapatalk
Hay. I'm using MultiROM since a few weeks. I used the Alucard Kernel until now because you need the Kexec Hardboot patch to use it. Would it be possible to add this Patch to the Kernel? I love your Kernel but I also love MultiROM. It would be great if we could combine both
Guys first time using the kernel, I loaded "Smooth Criminal"" profile, so far so good, anyways, my question is about the Fast charge, is it safe to draw 1900mA (that is what the lecture says) from a USB port?? my rig is a gaming one and another thing is that is set to Fast Charge = Enable, USB Port = 425mA and AC = 1600mA, I assume those Custom values are override because is set to ""Enable"" instead of ""Custom"", just wondering if its safe.. :/ How would I know.
need help regarding battery life
first of all thanks a lot for the kernel.im quite new to android and had a battery draining issue from the beginning and i changed my kernel in to this but no significant improvement of the battery life.other than that my phone is very smooth n no any other issue.im wondering why the battery drain so fast and its not last even a day with a full charge.screen on normally 2 hours per day.this is my first kernel installation and i did it accordingly other than fixing permission because there was no such option in the recover mode.it would be so nice if some one kindly guide me to resolve the problem because im sure there is something wrong in my device but not the kernel. these are some information about my device
model number gt-i9505
android 4.4.2
baseband version i9505xxufnc4
kernel 3.4.98 KT-SG_kk4.4 07.12.2014
i am using ktoonsified v6 profile in ktweaker and i have tried manual settings as well
i have attached a screen shot of my battery usage. display is on around 20mns
thanks in advance
Thank you for this kernel!
Hello,
Exactly the same problem for me, GSM and WiFi does not work with this kernel (KT-SGS4-KK4.4-AOSP-INTL-12.7.2014) on a "Snapshot CM11-M12 in Galaxy S4 Intl"
Sorry for my bad English
Hi all !
Hello guys.I have a I9505 for a month now and so far i've enjoyed playing with rooting/modding and so on.I've flashed CM11 at first but I replaced it with some modded Echoe Rom Touchwizz 4.4.2 ROM,Today I flashed this kernel and i'm so pleased with it.Lots of cutomizable options,OC capable and so on.My issue with my device it's that it gets hot very fast(after 10-15min of gaming) and after that it starts to throtlle .I've used like 3 different kernels so far including the stock one and the problem persists.With this one I managed to OC the cpu to 2106MHZ stable and the GPU to 545MHZ also stable.When I enter Asphalt8 for the first 5-7 minutes the performance it's just flawless compared to non-OC settings.The problem is after those couple of minutes it begins to throtlle as it does and I find myself running at 1.2GHZ or so CPU freq and 128MHZ GPU wich mages the game unplayable.I also set the throttle limit way upper to 85-90 degrees or so...still nothing seems to be stopping the throtlling on my device.If anyone has some tips or so please do help me.I really wanna enjoy this kernel xD ! :-bd
CM12 with this kernel -> experiences?
I just switched from stock Samsung 4.2.2 to AntaresOne's Unoffical CM12 rom on my S4 i9505.
I'm having the Miscellaneous battery drain issue (even though I still have better battery performance than with the stock Samsung rom), and have been thinking of installing this kernel.
However, on the xda forums a lot of ppl seem to be of the opinion that switching kernel will result only in minimal to unnoticeable improvement in terms of power consumption (taking into account just the kernel, not things as Greenifying, freezing and such which are kernel independent).
Can any of you give some feedback whether they have been getting noticeably better battery life with this kernel in similar circumstances (CM12, Miscellaneous drain) with ktoonservativeq or conservative governors?
Also, are there any other significant advantages to this kernel than power/cpu management over the AntaresOne CM12 kernel?
Hi
How I can find the S4 Touchwiz 4.4.4 Kernel Source?
Permission to use your kernel
I am requesting permission to include your kernel in a ROM that I am building.
Hi!
I've used the TwZ Kernel 4.4.2 on my 9505, Stock 4.4.2 ZTO (Brasil) rom, Rooted (of course) and have a issue:
When flashed and reboots, it stuck on "Samsung GT9505.." Logo. The sounds it makes is the same from a custom booting, but still stucked 4ver.
Flashed via CWM 6.0.4.7
I also Wiped Cache/Dalvik, but didnt Fix permissions (CWM 6.0.4.7 dont have this option anymore)
Please, if I've did something wrong or not.
Also, i've already have everything back to normal after flashing a Rom backup
Sorry for most worst english.
I need help, what rom work great with this version of kernel AOSP KITKAT 4.4 VERSION ?
ktoonsez awsome
ktoonsez, sweet kernel as always
only issue I've got is it doesn't work with the induction charging pads, I've got a genuine Samsung one.
I know this is fairly low on your radar and priorities list but if you could update this thread when you get to it, that would be great
Cheers
induction charge
I think i posted in the wrong thread before, your kernels are the bomb, im using the last 5.0 release on cm12 optimised release and its fast no random reboot. Very fast, and i know mr kstoonzes youre working on bigger things but when you get around to it please have a look at the induction charging, few reports saying its borked. Other 5.0 kernels fine. Keep up the awsomest work and happy xhristman
Kernel suport 5.0
Hello,
I'm new to his device and coming from Nexus I'm a little puzzled: I would like to know if there's any custom LP rom that would allow to tweak screen colors as the stock can.
I consider fundamental with this device to decrease the color saturation just as the cinema or photo pro mode on the stock rom can: Is there any way to attain this with custom LP rom?
I've been running an LP rom for a while on my trusted N5, so I'm quite familiar with the AOSP version and there is nothing that resembled that option.
Thanks
Hello all!
I want to root my Note 4 so I could remove bloatware, earphone volume restriction, wakelocks, etc and use a custom ROM but, reading at the forum, it looks like somethings are different now since I last rooted a phone( LG G2). Can you guys help me with some question?
1- I have a Galaxy Note 4 910C with 5.1.1 stock rom installed. What kernel( I don't want anything special here, only an good overall perfomance and battery life) do you guys think I should use since now a custom kernel is must for rooting?
2 - I'm also looking into using DN5 or Sixperience custom ROM and I always see people talking about new bootloader and modem. What are those?
3 - Is anything else I should know before rooting( custom kernel -> TWRP for recovery - Custom ROM)?
Thx in advance
Hasmodye said:
Hello all!
I want to root my Note 4 so I could remove bloatware, earphone volume restriction, wakelocks, etc and use a custom ROM but, reading at the forum, it looks like somethings are different now since I last rooted a phone( LG G2). Can you guys help me with some question?
1- I have a Galaxy Note 4 910C with 5.1.1 stock rom installed. What kernel( I don't want anything special here, only an good overall perfomance and battery life) do you guys think I should use since now a custom kernel is must for rooting?
2 - I'm also looking into using DN5 or Sixperience custom ROM and I always see people talking about new bootloader and modem. What are those?
3 - Is anything else I should know before rooting( custom kernel -> TWRP for recovery - Custom ROM)?
Thx in advance
Click to expand...
Click to collapse
1-2. If you need all the functions of the phone then stock kernel is best as some of it don't work right on custom kernels unless the developer of the custom rom has done something about it when changing the stock kernel for a custom. "Welcome to TW roms" Compared to other manufactures its a pain in the beep to use Sammy's TW but I do love the whole spen feature.
I don't have a C so cant tell you much about there battery life but a solid rom on stock kernel can be very good and mix it with what ever app you use to freeze apps and its good. I use 3c toolbox "paid version" the best app ever.
Bootloaders and modems must match the rom version you want to flash or you will end up in bootloops so example if you want coi3 based rom then bootloader and modem must be coi3 as well or it wont work. in odin BL = bootloader and CP = modem.
3. use odin to flash the recovery and rooting I cannot remember as I did that only once which was a few weeks after note 4 was released so much could have changed since that.