Database Users

My battery life is better on stock. Is that weird?

So I was running stock for a very long time, and I had insane battery life. I usually got 5 and a half hours of screen on time with my usage which mostly included browsing and a bit of youtube-ing and maybe the 30-40 minutes of gaming. I never used it conservatively though, I just didn't need anything else. I had GPS and bluetooth off and I used WiFi only at home (2g, not 3g, when outside).
Anyway, a month ago I flashed PA 3.99 and my battery life has reduced. I only (relatively) get 4 and a half to 5 hours of screen on time. Is this normal? I thought I'll get better battery life with a custom ROM. I'm still running stock kernel BTW.
PA is giving me too many issues including random reboots so I've decided to flash either CM, PSX, Carbon or PACman (help me in deciding from these?). Should I flash a custom kernel too? I'm leaning towards Faux for the battery life but I'm scared it might reduce it!
PS : I just flashed the PA ROM, so I'm still running the stock kernel, right? The thing is, on my older phone, some devs bundled the ROM with a custom kernel. My kernel version says 3.4.0-perf-g04b6fae. Sorry for the noob-ness.

There are just too many factors, the coding, apps installed, kernel, optimization, the user usage pattern, signal quality. It wouldn't surprise me though, but if it work for you stick with it.
Kernel alone doesn't determine the whole picture. I don't use PA, but I don't think it use stock kernel since stock usually ends with "mtv.corp.google.com".
You can check these battery life benchmark for kernels if you want to try, however, I don't go by them: http://forum.xda-developers.com/showthread.php?t=2449982

Mohit12 said:
So I was running stock for a very long time, and I had insane battery life. I usually got 5 and a half hours of screen on time with my usage which mostly included browsing and a bit of youtube-ing and maybe the 30-40 minutes of gaming. I never used it conservatively though, I just didn't need anything else. I had GPS and bluetooth off and I used WiFi only at home (2g, not 3g, when outside).
Anyway, a month ago I flashed PA 3.99 and my battery life has reduced. I only (relatively) get 4 and a half to 5 hours of screen on time. Is this normal? I thought I'll get better battery life with a custom ROM. I'm still running stock kernel BTW.
PA is giving me too many issues including random reboots so I've decided to flash either CM, PSX, Carbon or PACman (help me in deciding from these?). Should I flash a custom kernel too? I'm leaning towards Faux for the battery life but I'm scared it might reduce it!
PS : I just flashed the PA ROM, so I'm still running the stock kernel, right? The thing is, on my older phone, some devs bundled the ROM with a custom kernel. My kernel version says 3.4.0-perf-g04b6fae. Sorry for the noob-ness.
Click to expand...
Click to collapse
I did exactly the same, and feel exactly the same... I have the same apps, same usage, and I feel like I have a few hours less with this ROM (and same Kernel). I'm planning to give Franco a try, I think, although according to that benchmark it won't give a great battery life either... Have you already tried anyone?
Just a noob question, I haven't yet completely understood that thing about builds. When I was completely stock I was in JWR66Y. Then I only flashed PA 3.99 RC2 (for that build) and now in settings it says JLS36G. It now means that I have to care that kernels get on well with JLS36G? I thought I would stay in JWR66Y.

jpl90 said:
I did exactly the same, and feel exactly the same... I have the same apps, same usage, and I feel like I have a few hours less with this ROM (and same Kernel). I'm planning to give Franco a try, I think, although according to that benchmark it won't give a great battery life either... Have you already tried anyone?
Just a noob question, I haven't yet completely understood that thing about builds. When I was completely stock I was in JWR66Y. Then I only flashed PA 3.99 RC2 (for that build) and now in settings it says JLS36G. It now means that I have to care that kernels get on well with JLS36G? I thought I would stay in JWR66Y.
Click to expand...
Click to collapse
there are two versions of 4.3..one is stock (JWR) and one is AOSP (JLS)
the AOSP build is more latest in a way..AOSP build has more speed but has random freezes for 2-3 seconds (should be fixed in most of the roms by now) while stock JWR build is not as speedy as AOSP but doesnt have those random freezes.
And yeah you would now have to flash a JLS kernel rather than JWR..and if you want a kernel with good battery life..try hells core kernel which IMO has the best battery life and performance
http://d-h.st/users/hellsgod/?fld_id=13048#files

Mohit12 said:
So I was running stock for a very long time, and I had insane battery life. I usually got 5 and a half hours of screen on time with my usage which mostly included browsing and a bit of youtube-ing and maybe the 30-40 minutes of gaming. I never used it conservatively though, I just didn't need anything else. I had GPS and bluetooth off and I used WiFi only at home (2g, not 3g, when outside).
Anyway, a month ago I flashed PA 3.99 and my battery life has reduced. I only (relatively) get 4 and a half to 5 hours of screen on time. Is this normal? I thought I'll get better battery life with a custom ROM. I'm still running stock kernel BTW.
PA is giving me too many issues including random reboots so I've decided to flash either CM, PSX, Carbon or PACman (help me in deciding from these?). Should I flash a custom kernel too? I'm leaning towards Faux for the battery life but I'm scared it might reduce it!
PS : I just flashed the PA ROM, so I'm still running the stock kernel, right? The thing is, on my older phone, some devs bundled the ROM with a custom kernel. My kernel version says 3.4.0-perf-g04b6fae. Sorry for the noob-ness.
Click to expand...
Click to collapse
after trying multiple different ROMs, kernels, etc.. I found that I wasted a lot of time getting geeked-out over nothing special. Sure, it's fun.. exciting... learning.. some minor features that are cool.. but, I do desire to have those hours of life back. Also, I experienced many more downsides than positives. Battery, lock-ups, random reboots, etc. A rooted stock device has served me very well..

acridity said:
there are two versions of 4.3..one is stock (JWR) and one is AOSP (JLS)
the AOSP build is more latest in a way..AOSP build has more speed but has random freezes for 2-3 seconds (should be fixed in most of the roms by now) while stock JWR build is not as speedy as AOSP but doesnt have those random freezes.
And yeah you would now have to flash a JLS kernel rather than JWR..and if you want a kernel with good battery life..try hells core kernel which IMO has the best battery life and performance
http://d-h.st/users/hellsgod/?fld_id=13048#files
Click to expand...
Click to collapse
Thanks! I had read about the difference between AOSP and stock, but didn't know/remember that JLS always AOSP. I think I felt this one better than stock. I've already been 4 days with it and I'm really comfortable being able to change dpi individually, custom it and use Pie, too, and stability is just as in stock, I think (I only got restarts in both of them while using Skype :S ). I didn't even worry to try CyanogenMod (in all my previous phones I had used it, always).
schmit said:
after trying multiple different ROMs, kernels, etc.. I found that I wasted a lot of time getting geeked-out over nothing special. Sure, it's fun.. exciting... learning.. some minor features that are cool.. but, I do desire to have those hours of life back. Also, I experienced many more downsides than positives. Battery, lock-ups, random reboots, etc. A rooted stock device has served me very well..
Click to expand...
Click to collapse
That's my concern in trying with new, custom kernels. Right now I'm just fine (although I'd like to have a little better battery life), so I'll keep reading and see if it's worth changing the kernel .
Thank you!

jpl90 said:
Thanks! I had read about the difference between AOSP and stock, but didn't know/remember that JLS always AOSP. I think I felt this one better than stock. I've already been 4 days with it and I'm really comfortable being able to change dpi individually, custom it and use Pie, too, and stability is just as in stock, I think (I only got restarts in both of them while using Skype :S ). I didn't even worry to try CyanogenMod (in all my previous phones I had used it, always).
That's my concern in trying with new, custom kernels. Right now I'm just fine (although I'd like to have a little better battery life), so I'll keep reading and see if it's worth changing the kernel .
Thank you!
Click to expand...
Click to collapse
the hassle come with flashing a new rom because you have to do a factory reset..with kernel though its pretty simple just wipe cache/dalvik cache flash kernel then reboot. So just try the kernels you think are interesting and if youre not comfortable with it then flash another one..i know its a hassle with rom but not much with kernel.
P.S you guys should really try hells god kernel. Ive been personally using it for 3 months and the battery life is just amazing

I'm getting good battery life with KitKat.

acridity said:
the hassle come with flashing a new rom because you have to do a factory reset..with kernel though its pretty simple just wipe cache/dalvik cache flash kernel then reboot. So just try the kernels you think are interesting and if youre not comfortable with it then flash another one..i know its a hassle with rom but not much with kernel.
P.S you guys should really try hells god kernel. Ive been personally using it for 3 months and the battery life is just amazing
Click to expand...
Click to collapse
Yeah, I've already flashed kernels in other phones, but never had this risk of compatibility issues due to different builds.
I've read that JSS kernels in JWR roms cause problems. Is the opposite not true? I mean, right now I have a stock JWR kernel running in a AOSP based ROM (JLS). Could this compatibility problems cause boot issues too? Of course, always with tested kernels. Or I'll always have the opportunity to boot into TWRP and flash a new kernel, until one works?
And one last question. When I look for AK's 4.3 kernel I only read JWR and JSS. Why doesn't it say JLS? Is it the same as JSS, then?
Thanks!

I can vouch for the above statements. I'm liking Hells core kernel. It's fast and has great battery life (as good as stock, maybe even slightly better). FWIW, I'm using Carbon ROM now and it's MUCH better than PA.

jpl90 said:
Yeah, I've already flashed kernels in other phones, but never had this risk of compatibility issues due to different builds.
I've read that JSS kernels in JWR roms cause problems. Is the opposite not true? I mean, right now I have a stock JWR kernel running in a AOSP based ROM (JLS). Could this compatibility problems cause boot issues too? Of course, always with tested kernels. Or I'll always have the opportunity to boot into TWRP and flash a new kernel, until one works?
And one last question. When I look for AK's 4.3 kernel I only read JWR and JSS. Why doesn't it say JLS? Is it the same as JSS, then?
Thanks!
Click to expand...
Click to collapse
Sorry i forgot to mention that JLS and JSS are the same build JLS being the latest one..so there is no difference in JSS or JLS. You can flash a JSS kernel on a JLS build no problem. But if youre build is jwr then your kernel build should also be jwr because yes it causes compatibility issues if you flash a jwr kernel on a jss/jls build or vice versa. In every ROM the stock kernel is matched with its build number. If its a jwr ROM then the stock kernel would also be jwr and vice versa.
Flashing a jwr on a jls/jss rom or a jls/jss kernel on a jwr rom might cause the phone to be in a bootloop (not going past the bootanimation) and even if you get it to boot up the performance would be lacking and it might cause random freezes, graphic glitches and or random reboots.
However there are some roms that are a hybrid which means its a combination of jwr build and jls/jss build. In that case you will flash a jwr kernel only nothing else.

[Q] What is the fastest stable ROM+kernel+libs?

So searching comes up with >1 year old threads and not really answering my question.
I got a used N4 recently for my daughter, and I want it to be as fast and stable as possible. I unlocked, then ADB flashed the currrent Google image and then rooted, made it ART runtime and applied the Z2 Bionic lib zip, applied current Franco kernel. Then I was halted in terms of is that the fastest?
Is that best combination which exists right now?
Is CM11 better?
I didn't really form a concluson of the Z2 Dalvik lib vs ART.

From what I know, this patch is currently faster than ART itself:
http://forum.xda-developers.com/nexus-4/general/4-4-4-4-x-qualcomm-optimized-dalvik-t2546120
Since ART is 'experimental' right now of course it lacks of improvements, but I am sure if Android L is released this October this wouldnt be the case anymore.
Also some Custom Roms like Cyanogenmod has its own optimized bionic libs, sometimes better than the stock ones or any patches. I highly recommend you to try this out, because than you dont have to search and compare no more.
In terms of kernel, I would not recommend you to use franco's kernel on a Custom Rom. Make sure to use any other kernel. This is just my personal experiences with franco's kernel and someone might call me too dumb to use this kernel, but why do I have so much trouble with franco and every other kernel runs fine like matr1x, ak or semaphore? Judge for yourself

CCody said:
From what I know, this patch is currently faster than ART itself:
http://forum.xda-developers.com/nexus-4/general/4-4-4-4-x-qualcomm-optimized-dalvik-t2546120
Since ART is 'experimental' right now of course it lacks of improvements, but I am sure if Android L is released this October this wouldnt be the case anymore.
Also some Custom Roms like Cyanogenmod has its own optimized bionic libs, sometimes better than the stock ones or any patches. I highly recommend you to try this out, because than you dont have to search and compare no more.
In terms of kernel, I would not recommend you to use franco's kernel on a Custom Rom. Make sure to use any other kernel. This is just my personal experiences with franco's kernel and someone might call me too dumb to use this kernel, but why do I have so much trouble with franco and every other kernel runs fine like matr1x, ak or semaphore? Judge for yourself
Click to expand...
Click to collapse
Right so I saw the claim that sticking with Dalvic and using the optimised Dalvik lib is faster but I gave up keeping track of it as too much "feels" and "benchmarks aren't representative" conclusion.
Noting to avoid Franco with custom ROMs. The custom one I did was CM and Franco warns to not use it!

nigelhealy said:
So searching comes up with >1 year old threads and not really answering my question.
I got a used N4 recently for my daughter, and I want it to be as fast and stable as possible. I unlocked, then ADB flashed the currrent Google image and then rooted, made it ART runtime and applied the Z2 Bionic lib zip, applied current Franco kernel. Then I was halted in terms of is that the fastest?
Is that best combination which exists right now?
Is CM11 better?
I didn't really form a concluson of the Z2 Dalvik lib vs ART.
Click to expand...
Click to collapse
the fastest.. whatever im using.
but really, these kinds of threads arent allowed on xda since you are asking us to compare roms. oh, ill clue you in a little, cm isnt even close to the fastest. and no, franco kernel isnt the fastest either.

Best ROM/kernel threads are not allowed on XDA
The best bet is to head over to the development sections and try some out for yourself and see which combination suits you best
Thread closed

[Q] I just got my S4. What should I do?

I just got my S4 (GT-I9505) from my dad. I'm really excited but I don't know where to start. What should I do first now that I have it? Should I root it first? What is the best Rom and Kernel for this device? Any advice would be much appreciated!

If I were you I will perform a factory reset first This model has many ROMs, you may try each of them and find out your favorite one.:cyclops:

LeoYL said:
If I were you I will perform a factory reset first This model has many ROMs, you may try each of them and find out your favorite one.:cyclops:
Click to expand...
Click to collapse
Would you happen to know which one is the most popular rom right now? Or the best one? Or how about the best Rom for gaming?

Likach said:
Would you happen to know which one is the most popular rom right now? Or the best one? Or how about the best Rom for gaming?
Click to expand...
Click to collapse
i will suggest Halcyon ROM
quite smooth compare to other juz my opinion have a loot for it
http://forum.xda-developers.com/galaxy-s4/i9500-develop/phoenix-rom-i9500-t3101153

shingz96 said:
i will suggest Halcyon ROM
quite smooth compare to other juz my opinion have a loot for it
http://forum.xda-developers.com/galaxy-s4/i9500-develop/phoenix-rom-i9500-t3101153
Click to expand...
Click to collapse
I have i9505 though. I don't think it's compatible?

Once you're rooted and running custom recovery you can multiboot it, (run multiple custom Roms) all information is in this thread: http://forum.xda-developers.com/showthread.php?t=2864469

Alucard's kernel should give you good perfomance.
Or Hulk kernel. With hulk you can overclock the up to 2.1 Ghz. But I feel like Alucard gives you better performance (when running 1.9).
As for the roms, they are all pretty much the same.
I've tried Sabermod CM12.1, Resurrection Remix, AICP 9, FlexOS.
They pretty much have the same performance (judging by the UI speed).
Haven't tried the SlimLP builds yet.
I also tend to return to the GPE rom. It's 5.0.1 though.
The reason I keep coming back to GPE is that I have pretty much no problems with it. Very stable.
In benchmarks you will get the same score on all roms. I got an average of ~32000 on all the above mentioned roms.
So, in the end it will come down to how the rom feels (fast ans smooth or slow and laggy) to the user.

GDReaper said:
Alucard's kernel should give you good perfomance.
Or Hulk kernel. With hulk you can overclock the up to 2.1 Ghz. But I feel like Alucard gives you better performance (when running 1.9).
As for the roms, they are all pretty much the same.
I've tried Sabermod CM12.1, Resurrection Remix, AICP 9, FlexOS.
They pretty much have the same performance (judging by the UI speed).
Haven't tried the SlimLP builds yet.
I also tend to return to the GPE rom. It's 5.0.1 though.
The reason I keep coming back to GPE is that I have pretty much no problems with it. Very stable.
In benchmarks you will get the same score on all roms. I got an average of ~32000 on all the above mentioned roms.
So, in the end it will come down to how the rom feels (fast ans smooth or slow and laggy) to the user.
Click to expand...
Click to collapse
Any experience with CyanogenMod? When I click the ROM tab, CyanogenMod is listed first so I'm thinking that it is the most popular right now. Do you have any info on how good or how stable the mod is?

Also, quick question. When flashing a rom, I know that I wipe the cache and dalvik cache before flashing. But should I also wipe these 2 after wiping?

Likach said:
Also, quick question. When flashing a rom, I know that I wipe the cache and dalvik cache before flashing. But should I also wipe these 2 after wiping?
Click to expand...
Click to collapse
Not necessary but yo can

ooer! woa there cowboy! It's new. Take your time to explore and understand how it all works then once you get that feeling that you're sure this or that could be better that's the moment when you can think about rom flashing.
I loved the phone when I got it. I then thought hey, I'll flash cyanogen on it. That worked well for a time (and they're getting better and better with each version).
I then went a while with a danvdh's excellent google edition rom (imho a very good compromise for the minimalist).
I finally came full circle back to a TW based rom (for info the Imperium v9) with which I am most happy.
Through all that I discovered that what I wanted most was an excellent camera, good video player and good battery life, all of which come included in TW roms.
The Imperium or other roms bring nice tweaks and optimisations all of which came from that famous itch that every geek has for making things that bit better.

duxxyuk said:
ooer! woa there cowboy! It's new. Take your time to explore and understand how it all works then once you get that feeling that you're sure this or that could be better that's the moment when you can think about rom flashing.
I loved the phone when I got it. I then thought hey, I'll flash cyanogen on it. That worked well for a time (and they're getting better and better with each version).
I then went a while with a danvdh's excellent google edition rom (imho a very good compromise for the minimalist).
I finally came full circle back to a TW based rom (for info the Imperium v9) with which I am most happy.
Through all that I discovered that what I wanted most was an excellent camera, good video player and good battery life, all of which come included in TW roms.
The Imperium or other roms bring nice tweaks and optimisations all of which came from that famous itch that every geek has for making things that bit better.
Click to expand...
Click to collapse
If I were to play taxing games, which rom would you suggest? I'm in a tie up between Cyanogen and Google Play Edition.

Likach said:
If I were to play taxing games, which rom would you suggest? I'm in a tie up between Cyanogen and Google Play Edition.
Click to expand...
Click to collapse
In bechmarks both roms give the same scores. So there isn't much to say about that. CM does feel a bit faster in my opinion. But I don't know if it offers any noticeable advantage. Unless you're willing to run android 5.0 and ktoonsez kernel (which offers CPU and GPU overclock and Is only available for CM).

any recommended stable rom with finger print working?

title says it all. kindly please recommend me a good rom with good battery and performance thanks! and which kernel is best for s5? (was using boeffla kernel on s3 and its good)

rusherrrx said:
title says it all. kindly please recommend me a good rom with good battery and performance thanks! and which kernel is best for s5? (was using boeffla kernel on s3 and its good)
Click to expand...
Click to collapse
Stock sammy ROM gives the best battery life and performance in games. However, stock ROM may experience slowdowns over time which may be resolved with a clean flash. If you want AOSP, Resurrection Remix is a good choice, but you will have to sacrifice some in-game performance and camera quality.
As for which kernel, it is generally best to stay on the included kernel unless you absolutely need features like fast USB charge and sound modifications.

Saber said:
Stock sammy ROM gives the best battery life and performance in games. However, stock ROM may experience slowdowns over time which may be resolved with a clean flash. If you want AOSP, Resurrection Remix is a good choice, but you will have to sacrifice some in-game performance and camera quality.
As for which kernel, it is generally best to stay on the included kernel unless you absolutely need features like fast USB charge and sound modifications.
Click to expand...
Click to collapse
i have downloaded nolimits rom, xstrolite rom, alliance rom. havent flashed anything yet.. can provide me a link?

rusherrrx said:
i have downloaded nolimits rom, xstrolite rom, alliance rom. havent flashed anything yet.. can provide me a link?
Click to expand...
Click to collapse
Other than nolimits, the ROMs you've mentioned are quite dated. For official stock ROM, download the unbranded firmware from sammobile or from updato. Samsung has stopped updating their firmware so it is highly likely that ROMs based on stock will be discontinued as well.
Flash using ODIN.

Saber said:
Other than nolimits, the ROMs you've mentioned are quite dated. For official stock ROM, download the unbranded firmware from sammobile or from updato. Samsung has stopped updating their firmware so it is highly likely that ROMs based on stock will be discontinued as well.
Flash using ODIN.
Click to expand...
Click to collapse
oh anyways thanks. another quick suggestion needed. what rom is best even though the fingerprint is not working?

rusherrrx said:
oh anyways thanks. another quick suggestion needed. what rom is best even though the fingerprint is not working?
Click to expand...
Click to collapse
Pretty much all of the ROMs I've mentioned previously are the best in my experience. With the AOSP ROMs, ensure you have the latest bootloader and baseband otherwise fingerprint sensor will be disabled.

Try CrDroid best aosp rom that i have used in a while.

LineageOS 14.1 (android 7.1.2) best stable, performance, battery use for me.

Alliance Rom, From Kitkat and above

[ROM601]SUPERLite MM*330mb*G900F/T/W8/P/V/M/I/root,5wboot,2fast,nolag,multilang,&more

i'm using popwiz now with no problems at all
fast and clean
and i got 62154 antutu bencmark lol
good in gaming and battery life
give it a shot

AlBaraa98 said:
i'm using popwiz now with no problems at all
fast and clean
and i got 62154 antutu bencmark lol
good in gaming and battery life
give it a shot
Click to expand...
Click to collapse
Which popwiz
Sent from my klte using XDA Labs

its based on 5.1
https://mega.nz/#!NdkgAAaa!7DQcxWBUtQbNaUTGaOPYOKZ641pICmWdlFISYZAfGlM

[Discussion] Favourite Kernel and Why ?

We have another post for ROM. Why do we not have another post for Kernel ?
As we can see, we have more than 5 kernels that are from XDA developer or someone else. But which one is really good for your ROM and which one still keep updating ?
I have been using OP5T for 2 months. Have used so many kernels but i still got stuck in those and do not know which is more stable. I am planning to use the kernel from Blu_Spark. Is that good ?
Post your favourite kernel and tell everybody why you use that. It will help newbie to pick what they want.

I am using Flash kernel at the moment but I have already tried Blu, franko, arter, ElementalX etc, but honestly for me it's difficult to see any difference since this phone have already a great battery life and great speed. On my previous phone (S8) the custom kernel gives a big advantage since the phone have tons of bloat and and isn't running stock like Android.

vvt4994 said:
We have another post for ROM. Why do we not have another post for Kernel ?
As we can see, we have more than 5 kernels that are from XDA developer or someone else. But which one is really good for your ROM and which one still keep updating ?
I have been using OP5T for 2 months. Have used so many kernels but i still got stuck in those and do not know which is more stable. I am planning to use the kernel from Blu_Spark. Is that good ?
Post your favourite kernel and tell everybody why you use that. It will help newbie to pick what they want.
Click to expand...
Click to collapse
I have tried Blu and Franco for now and both have been very good. I really think kernel performance depends on the combo with the ROM as well as your device. I'm on Liquid Remix with Franco currently but I may give Resurrection Remix a try with Flash. If I had more time, I'd flash every ROM with every kernel to get a feel for all the possibilities LOL. :good:

For me Franco and flash kernel are the Best.... Now with ob3 with Franco kernel
Enviado desde mi ONEPLUS A5010 mediante Tapatalk

Did the Franco improve battery or performance? Someone Tried the Boeffla?

At the moment, both Flash Kernel and RenderKernel are great options in my opinion. I have tried most of the other kernels on xda and if you are looking specifically for smoothness/speed, these are the two you should test first. I do not run battery cycles; everyones daily use scenario really differs too much.
Flash Kernel currently has some kernel features I need (Kcal support & wakelock blocker) while RenderKernel does not have these features quite yet. While it lacks in some features, RenderKernel is undoubtedly the smoothest kernel for 5T right now.
I am on a 5T with OOS 5.0.3.

I like Franco but recently some custom ROMs have WIFI cannot turn on problem after I flash Franco kernel.
:fingers-crossed:
(Don't blame any devs here just sharing.)

crashazz33 said:
At the moment, both Flash Kernel and RenderKernel are great options in my opinion. I have tried most of the other kernels on xda and if you are looking specifically for smoothness/speed, these are the two you should test first. I do not run battery cycles; everyones daily use scenario really differs too much.
Flash Kernel currently has some kernel features I need (Kcal support & wakelock blocker) while RenderKernel does not have these features quite yet. While it lacks in some features, RenderKernel is undoubtedly the smoothest kernel for 5T right now.
I am on a 5T with OOS 5.0.3.
Click to expand...
Click to collapse
Where can I download flash kernel?

mo123456789 said:
Where can I download flash kernel?
Click to expand...
Click to collapse
https://forum.xda-developers.com/oneplus-5t/development/op5t-flash-kernel-v2-15-1-t3729330/page34

I haven't really played around with Kernel choices much.
I use and appreciate the professionalism of ElementalX kernel.
With it's options to adjust for extreme brightness, it quickly became a favorite a couple years ago and I've just stuck with it since.
Now most devs are adding high brightness to their kernels.
I guess I can start checking other kernels out.
I do like that ElementalX stays very stockish, reliable.
I can pretty much flash it and feel confident nothing weird will pop up over the next few days.

CZ Eddie said:
I haven't really played around with Kernel choices much.
I use and appreciate the professionalism of ElementalX kernel.
With it's options to adjust for extreme brightness, it quickly became a favorite a couple years ago and I've just stuck with it since.
Now most devs are adding high brightness to their kernels.
I guess I can start checking other kernels out.
I do like that ElementalX stays very stockish, reliable.
I can pretty much flash it and feel confident nothing weird will pop up over the next few days.
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Click to collapse
ElementalX, Franco, and flash were all my go-to kernels back in the 6p days (just a few months ago, lol), so it's hard to pick, especially since they all ended up on the 5t. Right now I'm on exkernel though I am partial to flash. Battery life is amazing on all 3, but the overclock on ex just adds that extra bit of smoothness that I've never experienced before. Call it placebo but I just love this kernel (exkernel).

any more input?
im curious to know if fsync affects battery performance at all, can someone also test this out if you are on a kernel that enables disabling the fsync feature

virtyx said:
any more input?
im curious to know if fsync affects battery performance at all, can someone also test this out if you are on a kernel that enables disabling the fsync feature
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Tried it but didn't notice any difference.
Technically it should improve performance when using the phone, but it won't be noticeable.

boeffla
simple and steady, close to stock for daily using.

blu_spark, always on the Fastlane. ?

Does flashing a custom kernel solves Google play services battery drain?
Do I need custom recovery and root to flash a custom kernel? I'm not willing to play with kernel adiutor so I'm not really interested in rooting

luws said:
Does flashing a custom kernel solves Google play services battery drain?
Do I need custom recovery and root to flash a custom kernel? I'm not willing to play with kernel adiutor so I'm not really interested in rooting
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Custom kernel has nothing to do with google play services. You need custom recovery to flash a kernel, but most kernels for op5t are "flash & forget" which mean there is no reason to change the setting of the kernel.
Sent from my ONEPLUS 5T

vagkoun83 said:
Custom kernel has nothing to do with google play services. You need custom recovery to flash a kernel, but most kernels for op5t are "flash & forget" which mean there is no reason to change the setting of the kernel.
Sent from my ONEPLUS 5T
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maybe not Google play services specifically, but with my latest phone (zuk z2), kernel was directly related to deep sleep
stock OOS/kernel has a serious issue with Google PS in terms of deep sleep. Besides that, I dont feel any need to flash a custom kernel. SOT is incredible already, and performance is really fluid.

luws said:
maybe not Google play services specifically, but with my latest phone (zuk z2), kernel was directly related to deep sleep
stock OOS/kernel has a serious issue with Google PS in terms of deep sleep. Besides that, I dont feel any need to flash a custom kernel. SOT is incredible already, and performance is really fluid.
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If you are OK then there is no need to flash a kernel. If an app is crap (like Google services or facebook) the kernel can't do miracles and its not kernels job to control wakelocks of user apps
Sent from my ONEPLUS 5T

I keep changing between blu and new kernel
Not sure which to stick with but I think new kernel gives me a bit more battery