Related
Looking for a good kernel to use with stock rooted ROM. So many have been posted not sure which work well. I have removed all bloat programs, now just want to be able to save battery.
So undervolt with profiles.
Suggestions
HeyIt'sLou's #4 Kernel.
This is a question, it belongs in the Q&A sub-forum, not Android Development
I am running the mik ROM 3.0 and I am not sure what a custom kernal is or how to flash a kernal is it the same as a rom?? How do I apply a kernal while using my ROM?? I have searched the forums and couldn't find an answer plz help me out thanx
Sent from my PC36100 using Tapatalk
reaper559 said:
I am running the mik ROM 3.0 and I am not sure what a custom kernal is or how to flash a kernal is it the same as a rom?? How do I apply a kernal while using my ROM?? I have searched the forums and couldn't find an answer plz help me out thanx
Sent from my PC36100 using Tapatalk
Click to expand...
Click to collapse
A custom kernel lets you overclock and under clock. So you can actually choose what speed you want your phone to run. First download the kernel put it on the root of your sdcard (not in any folders) go to recovery wipe cache and dalvik cache then flash kernel then reboot
Sent from my PC36100 using XDA App
The kernel controls certain hardware functions such as process scheduling, CPU clock speeds and voltages, frames per second, battery charge/discharge behaviors, etc. The best possible "layman's" analogy that I can think of is that a kernel is similar to hardware drivers that you install onto a computer. The drivers tell your system how to use whatever hardware components you've got installed.
There are a few rules with kernels though. You can't just download any kernel, flash it, and go on your way.
1. Sense kernels ONLY work with Sense ROMs. AOSP kernels ONLY work with AOSP ROMs.
2. Don't use a HAVS kernel if you're using setcpu.
3. Don't bother flashing a kernel if you don't know what a kernel is or are incapable of reading the sticky, at the top of this forum, whose sole purpose is to explain everything about kernels. Because chances are you're just going to screw up your phone.
Threads about kernels are one of the most common questions on this site, next to battery life issues and ROM preferences. Use the search feature. I guarantee there are a million threads that have already answered your question. If all else fails.....Google.
Edit: kernels do more than just letting you overclock your cpu like evo4gnoob said. If you don't know what a kernel is then you probably shouldn't be overclocking your phone anyway. And no, overclocking your Evolution is not like overclocking your computer. Again, you're likely to damage your phone if you just go and start tinkering without a clue as to what you're actually doing.
Long time lurker, first time poster :3. Anyways, I have a few questions regarding the flashing of ROMs and kernels. I have been looking around for a nice ROM(s) or a kernel(s) to flash the t989. Currently I am running on rooted stock and want to mix it up a bit. I came across the Darkside X v1 Final kernel located here: http://forum.xda-developers.com/showthread.php?t=1466283&page=44 .
Now the question is can I flash this kernel but retain the stock ROM?
- any advantages vs flashing kernel and a new ROM?
- disadvantages?
Is there anything that I should be concerned about, or pay special attention to before proceeding with this?
Thanks!
ohaiu said:
Long time lurker, first time poster :3. Anyways, I have a few questions regarding the flashing of ROMs and kernels. I have been looking around for a nice ROM(s) or a kernel(s) to flash the t989. Currently I am running on rooted stock and want to mix it up a bit. I came across the Darkside X v1 Final kernel located here: http://forum.xda-developers.com/showthread.php?t=1466283&page=44 .
(1) Now the question is can I flash this kernel but retain the stock ROM?
- (2) any advantages vs flashing kernel and a new ROM?
- (3) disadvantages?
(4) Is there anything that I should be concerned about, or pay special attention to before proceeding with this?
Thanks!
Click to expand...
Click to collapse
(1) Yes you can, just wipe cache and dalvik cache prior to flashing kernel
(2) Depends on what the kernel has to offer. I'm not super well informed on tdjs kernel but for one you get BLN support which is great. You also get performance and battery enhancements plus many other goodies.
(3) Not really, any kernel on these forums is better than stock so you're looking at nothing but advantages.
(4) As long as you follow the proper steps to installing a kernel you should be fine. Common sense is your friend. Once you flash a specific kernel you might want to look at under clocking and under vaulting to extend your battery life with minimal performance decrease.
BONUS: TDJ's Darkside ROM and Eugenes Streamline Kernel are the best for me. Great stability, battery and performance. Refer to my signature for links.
Best of luck
The best advice I can give is Back up your stock rom with rom manager and back your apps with titanium, after that you can flash flash any rom and take it on a test drive to see how it feels. If you see it's buggy you can go back to the stock you had to begin with like you never did a thing.
Personalty I tried most of the ICS roms an found bugs I just couldn't deal with in one way or another. I did find this ICS rom today
http://forum.xda-developers.com/showthread.php?t=1623430
This has the leaked tmo kernel and radio making it almost the complete update we so deserve lol. anyway I put it on today and sofar all I could say is it is sweet no bugs this far and love the ICS......
Last advice is before flash do the darkside super wipe this does a better job then just wipe cache and dalvik cache and you dont lose the data you have backed up.
Oh also follow the directions from any rom to the tee to lessen the chance for problems
[Q] Questions regarding kernels and romArrow
Thanks for the input guys. Right now, I would like to experiment with a new kernel before going full-blown with a ROM...I will likely do that later down the road.
Now, while I was reading up on the various kernels and their offerings, another question popped into my head. Will flashing the phone with a new kernel purge pre-existing applications and settings? I will be backing up regardless, but I just thought I'd ask.
ohaiu said:
Thanks for the input guys. Right now, I would like to experiment with a new kernel before going full-blown with a ROM...I will likely do that later down the road.
Now, while I was reading up on the various kernels and their offerings, another question popped into my head. Will flashing the phone with a new kernel purge pre-existing applications and settings? I will be backing up regardless, but I just thought I'd ask.
Click to expand...
Click to collapse
no
I've rooted my HTC Evo 4G (not LTE). I tried to set up a swap partition and learned that i need a different kernel. Regardless of whether or not i use swap memory, I'd still like to find a good ROM/Kernel. I'd love ICS, but they all say that 4g and the camera doesn't work yet. I have trouble finding the most up to date information. Recommendations on ROMS / Kernels / combinations?
trissypissy said:
I've rooted my HTC Evo 4G (not LTE). I tried to set up a swap partition and learned that i need a different kernel. Regardless of whether or not i use swap memory, I'd still like to find a good ROM/Kernel. I'd love ICS, but they all say that 4g and the camera doesn't work yet. I have trouble finding the most up to date information. Recommendations on ROMS / Kernels / combinations?
Click to expand...
Click to collapse
That's akin to asking what car with what engine is the best. You'll get 100's of different answers, so here's mine
Decks Reloaded v.44 with Mason .15 kernel...see my sig.
Veyka will close this thread soon... No doubt about it. Just flash them all and see what YOU like best!
Sent from my PC36100 using xda app-developers app
MIKESTONY said:
That's akin to asking what car with what engine is the best. You'll get 100's of different answers, so here's mine
Decks Reloaded v.44 with Mason .15 kernel...see my sig.
Click to expand...
Click to collapse
Okay, I found the kernel ... now I need to find the rom, right? because if I flash the kernel into the stock rom it will freak out ... so it's just a matter of executing two zips from recovery, the rom then the kernel? or am i forgetting something?
trissypissy said:
Okay, I found the kernel ... now I need to find the rom, right? because if I flash the kernel into the stock rom it will freak out ... so it's just a matter of executing two zips from recovery, the rom then the kernel? or am i forgetting something?
Click to expand...
Click to collapse
As long as the kernel matches the stock rom you can use it. It needs to be a git gingerbread sense kernel of you are on 2.3.3 or 2.3.5 stock if you're on 2.2 stock needs to be a froyo kernel. If you go to something like cm7 or decks reloaded, anything aosp based make sure you use an aosp gingerbread kernel. If you try ics and want a custom kernel or jb make sure to use matching kernels or you'll end up in a bootloop and need to reflash the rom to fix the kernel
Edit: when flashing make sure to do the proper wipes. For a rom wipe everything but the SD card, for a kernel or a modification wipe only cache and dalvik cache. When flashing a rom and a kernel at the same time, wipe everything but SD for rom then wipe.cache and dalvik and flash the kernel
We are legion, for we are many.
Sent from the DarkSide of the GalaXy with a MEK device
-EViL-KoNCEPTz- said:
As long as the kernel matches the stock rom you can use it. It needs to be a git gingerbread sense kernel of you are on 2.3.3 or 2.3.5 stock if you're on 2.2 stock needs to be a froyo kernel. If you go to something like cm7 or decks reloaded, anything aosp based make sure you use an aosp gingerbread kernel. If you try ics and want a custom kernel or jb make sure to use matching kernels or you'll end up in a bootloop and need to reflash the rom to fix the kernel
Edit: when flashing make sure to do the proper wipes. For a rom wipe everything but the SD card, for a kernel or a modification wipe only cache and dalvik cache. When flashing a rom and a kernel at the same time, wipe everything but SD for rom then wipe.cache and dalvik and flash the kernel
We are legion, for we are many.
Sent from the DarkSide of the GalaXy with a MEK device
Click to expand...
Click to collapse
Okay, I ended up installing cyanogenmod 7.2 ... which is a "rom," right? now i see these kernels ... right now looking at tiamat-dev dot com / supersonic ... this would work with the rom right? and what would change by installing this kernel? and which one would i want to download from that list? sorry
trissypissy said:
Okay, I ended up installing cyanogenmod 7.2 ... which is a "rom," right? now i see these kernels ... right now looking at tiamat-dev dot com / supersonic ... this would work with the rom right? and what would change by installing this kernel? and which one would i want to download from that list? sorry
Click to expand...
Click to collapse
Yes cm7.2 is a rom, I always used tiamat 4.1.0 on cm7.2. The kernel will add different governors, clockspeeds for overclocking, change the scheduler and allow for undervolting. The kernel is what allows the rom to talk to the hardware and vice versa, it contains all of the drivers for the hardware.
We are legion, for we are many.
Sent from the DarkSide of the GalaXy with a MEK device
CLOSED
STOP CREATING THESE POINTLESS THREADS
IT CREATES A ROM WAR AND NEXT TIME I WILL START INFRACTING ALL THAT RESPOND AS WELL AS THE PERSON THAT CREATED IT
Greetings. I'm coming from an Epic 4g touch. I was fairly comfortable rooting, flashing, tweaking, etc... on that phone. I just convinced Sprint to give me a "free upgrade" to the S3 because I went through 4 E4GTs in a year (lots of build-quality issues, I think I had them all...)
Anyway, the S3 I was given is a refurb ... how do I find out if it's one of the "newer" models that might have trouble with some flashing operations? If I do have one of the newer ones, is there a way to work around the issue? (From what I understand it's something with the bootloader, correct?)
Also, the S3 "landscape" is a little different here. Are the Odin one-clicks a good way to root on this phone? Also is this method (http://forum.xda-developers.com/showthread.php?t=2286241) a good way to go if I want to root from my Mac? I also have access to a windows machine if there's no "good" Mac-based way, but it's a clunky old laptop that makes me cry whenever I need to use it.
Finally ... as someone coming from the E4GT, is there anything special I should know about hacking around with the S3?
I've been poking around the threads quite a bit, but it's a little difficult to know what's current info etc... Thanks in advance ... can't wait until I know as much about this phone as I did with my E4GT.
Ok here the two major links your going to need.
Here http://forum.xda-developers.com/showthread.php?p=34579827
Also all your questions here http://forum.xda-developers.com/showthread.php?p=38172219
also there's nothing changed in the bootloader but the new S3's have some type of safety placed in them that do not allow custom recovery to mount storage. The link I gave you has the modded recoveries when you root. To find out more information go to this thread http://forum.xda-developers.com/showthread.php?p=44262749
Remember search is your best friend, Have a great day!
edfunkycold said:
Ok here the two major links your going to need.
Here http://forum.xda-developers.com/showthread.php?p=34579827
Also all your questions here http://forum.xda-developers.com/showthread.php?p=38172219
also there's nothing changed in the bootloader but the new S3's have some type of safety placed in them that do not allow custom recovery to mount storage. The link I gave you has the modded recoveries when you root. To find out more information go to this thread http://forum.xda-developers.com/showthread.php?p=44262749
Remember search is your best friend, Have a great day!
Click to expand...
Click to collapse
Awesome, thanks ... successfully rooted. Figured I'd try the TWRP recovery option since ... hey might as well try ALL the new things.
Ok, now which ROM is most stable and has the best battery life? (woah, woah, put that down I was just kidding)
Seriously though, what are some kernel, rom, tweak combos that folks seem to be having success with? I see you guys have Goddly's comadose over here, I used that with great success on the E4GT. Is there a favorite "close to stock" but debloated, mildly tricked out and tweaked ROM that folks are gravitating toward? On the E4GT, Tdundam's recalked was pretty popular ... anything of that ilk here?
I've also read that some folks have been having trouble installing AOSP ROMs ... is that demon exorcized by rooting with the procedure you suggested?
Anyway, thanks for taking the time to be a guidepost ... just trying to whack my way through the weeds on this new device.
Nope aosp won't flash on new S3's but you can try. lots of good roms I recommend either TPR the peoples rom or MOAR. My kernel of choice is Ktoonsez KT747 kernel and I use Comadose tweaks. Have had great success with it but also visit Team Kernelizers thread also.
http://forum.xda-developers.com/showthread.php?p=34624618
http://forum.xda-developers.com/showthread.php?p=37149249
http://forum.xda-developers.com/showthread.php?p=29426212
http://forum.xda-developers.com/showthread.php?p=35101228
Remember search is your best friend, Have a great day!
edfunkycold said:
Nope aosp won't flash on new S3's but you can try. lots of good roms I recommend either TPR the peoples rom or MOAR. My kernel of choice is Ktoonsez KT747 kernel and I use Comadose tweaks. Have had great success with it but also visit Team Kernelizers thread also.
http://forum.xda-developers.com/showthread.php?p=34624618
http://forum.xda-developers.com/showthread.php?p=37149249
http://forum.xda-developers.com/showthread.php?p=29426212
http://forum.xda-developers.com/showthread.php?p=35101228
Remember search is your best friend, Have a great day!
Click to expand...
Click to collapse
Flashed MOAR yesterday ... waiting for it to settle in. So far, I like what I see! Lots of flexibility.
I installed with KT747 and applied some of the kernel tweaks in his thread for the ktoonservative governor and bfq scheduler.
I'll wait on Comadose to see how this settles in on its own. Thanks again for getting me flashing this phone.
QUESTION: Where's the best place to watch for AOSP being compatible on this phone again?
romgnascher said:
QUESTION: Where's the best place to watch for AOSP being compatible on this phone again?
Click to expand...
Click to collapse
Glad you got it going. The thread with the modded recoveries will be the best one to follow in regards to when something happens. http://forum.xda-developers.com/showthread.php?p=44262749
Have a great day!