yashsingh1/xdaforums huggingface dataset:
[AT&T Samsung Galaxy Note II] koreancanuck:
This is how I feel about improving battery life with kernels.

Undervolting, for example, is one of the ways people to try to improve their battery life by. Undervolting has barely any effects if any for me. More often than not, I just end up messing up my battery and later the battery life goes haywire. I've done undervolting numerous times with different phones and I've stopped undervolting at some point.

With the Note 2, we already have fantastic battery life and there should be no to little reason to undervolt if you want a stable phone. When you find the "magical" numbers, I guess it could be good but it takes a lot of messing around and toying to get maybe.. 5% more battery life? I'm not an expert or anything but that's how I feel.

Other tweakings such as governor demands can be helpful as well, but then again, same story as above.

I think other than benchmarks, you aren't going to notice a substantial difference between custom kernels and the stock kernel for the Note 2. The stock kernel is more than good enough for daily users. Custom kernels should be more reserved for people who want to mess around with increasing processor speed, screen tweaks, etc. etc.

If you are a beginner in flashing these, you should probably read more up on it first before deciding whether you want a custom kernel or not. I've done it too many times.. and it's an addiction that was hard to rid of :p Even if you can increase the battery life with a custom kernel, it probably won't be much.

P.S. I'm not, in any way, against custom kernels. I think kernel developers are awesome :good: I just think the Note 2 kernel is good enough for users who don't know as much as others.
[AT&T Samsung Galaxy Note II] rockinandroid:
No installing rom for att note 2....tested speeds....4g 5mbps and lte 26mbps
[AT&T Samsung Galaxy Note II] rockinandroid:
Hey, was wondering where you got the 26.1 kernel...i only had 25.7 and the newest 27.4? Thanks!
[AT&T Samsung Galaxy Note II] artofdesign:
I got it from here when it was available. You want to go backwards?
[AT&T Samsung Galaxy Note II] AndreiLux:
While I agree with your premise, there's a lot more to custom kernels than undervolting. At least for kernels worth a while and not just uniformed, cherry picked, clobbered together nonsense that the vast majority of releases are about.

I'd say the optimised governor scaling, hotplug logic, and the removal of the touch booster replaced with the flex rate mechanism, scheduler changes, CPU idle state changes and the GPU scaling bring the vast amount of battery improvement of this kernel. Undervolting is a bonus on top of that.
[AT&T Samsung Galaxy Note II] shaolin95:
Actually you are wrong. If you think like that then is likely you do not have any apps or games that can benefit from the extra speeds but trust me, some do.

;)
[AT&T Samsung Galaxy Note II] P1 Wookie:
I've used this kernel from day one of owning my note, so I can't really compare to stock. What I do know, though, is I get amazing battery life with this one, and my phone runs without any hiccups.
[AT&T Samsung Galaxy Note II] Gucci.Nexus:
do you change any settings? if so, which ones?

i want to try this kernel, but I don't know if it would be better than stock if I don't change any settings?

i don't play games much. just want something that is stable, maybe a little better battery life, and not slower/ less responsive than stock. would i get that if i flash the kernel and not change settings? if not, any setting recommendations please?
[AT&T Samsung Galaxy Note II] P1 Wookie:
It will be better than stock, whether you make any changes or not. I OC and UV. If anything, it's more responsive than stock, even if you don't change anything.
[AT&T Samsung Galaxy Note II] 45ACP1911:
I've overclocked to 1.8 and under volted all -100. Kick ass battery and super stable.
[AT&T Samsung Galaxy Note II] warfanax:
I also uv -100 all but 800mhz. I had to make it around -80. Seems stable for now but scared to set on boot
[AT&T Samsung Galaxy Note II] 45ACP1911:
I've had mine set to on boot complete for about a month now and have never had an issue. Not saying you should but it works for me.
[AT&T Samsung Galaxy Note II] gundal:
Check out my next post ;)
[AT&T Samsung Galaxy Note II] telight:
Just confirmed that flashing to alpha 28 makes SD "damaged". Flashed back to 27 and the phone can read sd card just fine. Wheww, I thought i had just corrupted all my sd data.
[AT&T Samsung Galaxy Note II] Smartino666:
I can second this. Same thing happened to me. Back to 27 64gb SD card is fine
[AT&T Samsung Galaxy Note II] gundal:
My 32 gb lexar class 10 reads fine.
[AT&T Samsung Galaxy Note II] projekt1:
No problem with SD card reading (internal or external) here ob alpha28 build
[AT&T Samsung Galaxy Note II] meatlocker:
My 64GB SanDisk works wonderfully. Thanks, AndreiLux and gundal!!!
[AT&T Samsung Galaxy Note II] telight:
I have a 64GB card too. It is class 10. I'll try to re-download and re-flash and see if i can replicate the error again.
[AT&T Samsung Galaxy Note II] brosenz:
Got the exact same error with the 64GB card, going back to 27.4
[AT&T Samsung Galaxy Note II] BKO Overdrive:
I got a 16GB Samsung Card. Working flawless. All GPU volts are diplaying correctly and the volt table is updated to the applied settings. Fantastic!
[AT&T Samsung Galaxy Note II] telight:
Just replicated the situation again by re-flashing to alpha 28. Definitely a problem with the kernel, i am running CleanRom 3.0 with the s pen fix.
[AT&T Samsung Galaxy Note II] ElAguila:
Not sure what is going on with it. I just flashed it and I can access my 64GB card. I am wondering if I should go back to the previous kernel. My concern would be if it really did corrupt the sd card when I think all is well with it.
[AT&T Samsung Galaxy Note II] gundal:
Guys its already been addressed by Andrei, he knows he broke exfat and is loooking into it.

temp solution use .27

or copy sd to pc reformat your sd and copy back

it will be fixed but will be a big change.
[AT&T Samsung Galaxy Note II] 45ACP1911:
Did you guys read the change log on the official thread?
[AT&T Samsung Galaxy Note II] ahmarchi:
After installing new kernek. Opening stweaks closes down with stopped working message.
[AT&T Samsung Galaxy Note II] 45ACP1911:
Yeah did the same for me to :(
[AT&T Samsung Galaxy Note II] antiochasylum:
Just Installed to try. STweaks works fine guys.

---------- Post added at 06:24 PM ---------- Previous post was at 06:19 PM ----------

Its not broken, he's not supporting it anymore. If people wanted to actually read the change log, it would say this.

He tells them to format to fat32, ntfs, or ext4.

So by using 28 your exFAT cards will show as corrupt. Because its not supported anymore. Time to format the card.
[AT&T Samsung Galaxy Note II] Avgsmoe:
stweaks works fine for me.
[AT&T Samsung Galaxy Note II] AndreiLux:
It does show that not terribly many people read the main thread..

As for exFat.. it's a ****ty business but either I'm prevented on doing further work on the kernel in terms of upstreaming it, or some people give up on exFat.

And if STweaks crashes, just launch it again.
[AT&T Samsung Galaxy Note II] ahmarchi:
Just had a fresh install st tweaks still closes.
[AT&T Samsung Galaxy Note II] gundal:
yea ive noticed sometimes stweaks crashes but when you run it again its fun ive never had it NEVER work...

im wondering if maybe the profile has changed a bit with the addition of new options and thats causing a crash?

try renaming data/.perseus to .perseus2 and then use task manager to clear ram then run stweaks it will rebuild the default profile.

if that works I can explain to you how you can apply just your changes from .perseus2 into yournew profile... or just reset all the **** manually
[AT&T Samsung Galaxy Note II] jeremyandroid:
Everything working perfect now on Jedi X6. 1 and 28 with tweaks smooth and snappy thanks. :) and **** on 32 &64 cards

Sent from the highly modded JDevil Note 2
[AT&T Samsung Galaxy Note II] ahmarchi:
Where is this file at. I did a fresh install of ptme3 6.1 and nothing...still crashing stweaks every time.
[AT&T Samsung Galaxy Note II] fabii25:
I wonder what is the difference of the modification of the color in this kernel?
[AT&T Samsung Galaxy Note II] 45ACP1911:
Thanks man but still didn't help. I even went as far as to uninstall with titanium backup and reinstall from the play store but that didn't even help.
[AT&T Samsung Galaxy Note II] gundal:
what roms are you guys running? It has to be something related to that if you cleared the folder and it still wont open.

---------- Post added at 06:09 AM ---------- Previous post was at 05:40 AM ----------

just added 5 flashable profiles to my post on page 33
[AT&T Samsung Galaxy Note II] 45ACP1911:
Clean rom newest version
[AT&T Samsung Galaxy Note II] Avgsmoe:
Cleanrom 3.0.1 here also
[AT&T Samsung Galaxy Note II] gundal:
sounds like it might be a problem with the rom then... try flashing another rom? or you could just set your profile in the the default.profile and it will load them at boot, but you still wotn be able to open stweaks.
[AT&T Samsung Galaxy Note II] rsalan:
Yeah.. confirmed crash on CleanROM 3.0.1.
[AT&T Samsung Galaxy Note II] rockinandroid:
Will these governor tweaks work with version 27.4 3.0.36??? Was also wondering what changes or effect where done on the cores?? Thanks for your help...running kernel version 27.4 and your tweak zip from another post for over locking and undervolting.. Ok to flash scheduler zip over those tweaks.. Thanks for your awesome work!!!!!:laugh:
[AT&T Samsung Galaxy Note II] P1 Wookie:
I'm on CleanROM 3.0.1 and STweaks opened fine...
[AT&T Samsung Galaxy Note II] assaace:
Same here
[AT&T Samsung Galaxy Note II] 45ACP1911:
Yeah stweaks opens just fine until I update this kernal
[AT&T Samsung Galaxy Note II] P1 Wookie:
I'm on the updated kernel.
[AT&T Samsung Galaxy Note II] gundal:
Yup these work on 27 thats when I made them just couldnt properly share till 28.

You will have to set them manually on 27 as 28 introduced the override.profile

see

http://xdaforums.com/showpost.php?p=35438712&postcount=2129

for more detailed info on what I changed.

The other option is to extract the zip of the tweaks and look in data/,perseus/override.profile and then copy those changes into your default.profile. or set them in stweaks.
[AT&T Samsung Galaxy Note II] ahmarchi:
i tried new clean rom and new x6.1 rom, and stweaks closes on both. will try to do something diff, i might have an idea for a possible fix. will report back when x6.1 is redownloaded.
[AT&T Samsung Galaxy Note II] gundal:
its been found it that you need an sdcard in your device foor stweaks to load. andrei has fixed this i think already in 28.1
[AT&T Samsung Galaxy Note II] ahmarchi:
damn it gun!!! that's exactly what i was going to test out. FML when i finally have a fix, it has already been discovered!!! hahahahaha thx alot brudda! ps for ur 5g profile, how much are u under volting each speed step? i was looking at your logic for the governor settings and wow, u definitely put a lot of effort into modifying those values. the logic used is phenomenal.
[AT&T Samsung Galaxy Note II] 45ACP1911:
That's weird because on 27 it works just fine. I restored to clean rom 2.1 and kernel 27 and I have no issues opening it. But it could also be the rom as chompsms crashes when trying to send mms on 3.1
[AT&T Samsung Galaxy Note II] ahmarchi:
gundal, fyi in case someone asks, it has not yet been fixed. no SD card = still crashing STweaks.
[AT&T Samsung Galaxy Note II] 45ACP1911:
Ok so was on 27 and stweaks opens with no problems flashed 28.1 and I can't get it to open now. Only thing that changed was kernel version.
[AT&T Samsung Galaxy Note II] gundal:
ahjd you dont need to get them from 5g you can also just flash the governer tweaks zip and that one will only update your gov and leave ur exact votages as they are. if you havent undervolted then try 5g out see if it works for you, you will ony need to flash gov tweaks once (but you need to reboot before flashing a diff profile, 1 per boot)
[AT&T Samsung Galaxy Note II] ShadowVlican:
I'm on 27.4 without sd card.. Stweaks works fine for my overclock and undervolt

Not gonna bother with 28 until I see that it's working painlessly
[AT&T Samsung Galaxy Note II] daddymatt:
Im on 28 with Jedi and the storage swap, everything is gravy.

Sent from my AT&T Galaxy Note II /w wireless charging.
[AT&T Samsung Galaxy Note II] artofdesign:
Ok, not sure I fully understand.

What is the last version of this that fully supports exfat 64gb cards?

I need that one for my Note 2.
[AT&T Samsung Galaxy Note II] AndreiLux:
I reverted the block changes do exFat will work on the latest version.
[AT&T Samsung Galaxy Note II] j-raymn:
Just reporting, CRT OFF animation seems to be working back after flashing v.28.2, ROW is indeed the default scheduler after boot.
[AT&T Samsung Galaxy Note II] rockinandroid:
Set all these to your other page but only question is where you have this value....40% thres for response 81....all i have to choose from is in mhz...i have 400mhz there now....what should i change too???? Thanks for all your help....it is Frequency for responsiveness...set at 400mhz...is that correct or should i change?

anything wrong with the updated Kernel?? Can i flash it???
[AT&T Samsung Galaxy Note II] ryvandal:
Im sorry I am new to this.... So was is the BEST profile for BATTERY LIFE.... I need battery life.... Can anyone point me in the right direction?

I read over it again... I just want to make sure I am doing the right thing for BATTERY LIFE...

Profile 1

with the Governor tweak zip...

Is this right for best battery?

Or is profile 5g the best of them all?
[AT&T Samsung Galaxy Note II] gundal:
download them all flash 5g and boot, if it doesnt boot flash 4 keep going till its stable. best is 5g but IT might not work for your phone is you have an inferior chip.
[AT&T Samsung Galaxy Note II] ryvandal:
Oops I flashed 5g just for the hell of it an hour ago...

Nothing wrong yet seems to run perfect... So I assume thats the best setup then?
[AT&T Samsung Galaxy Note II] mrakifa:
Monster! Thank you for this!
[AT&T Samsung Galaxy Note II] otisman:
Kill batt life bradahs this helps batt life overclock your phone im on the second day with my note2 and only charge it once. Much alohas :thumbup:

Sent from my SAMSUNG-SGH-I317 using Xparent Red Tapatalk 2
[AT&T Samsung Galaxy Note II] yas1987:
Anyone knoe where i can read to learn how to install kernel for this phone?

Edit : http://www.thesuperusersguide.com/how-to-flash-a-kernel.html
[AT&T Samsung Galaxy Note II] rayandreas:
theres 2 files. one is a tar. flash with odin. or use the cwm file and just flash it in recovery. nothing fancy.

so, put the cwm kernel on your sd card and get into recovery. either on clockworkmod or twrp.both work. once in recovery find the kernel and install. that's it. you now have an awesome kernel my friend!
[AT&T Samsung Galaxy Note II] mkr14:
First read how to root it in this thread : http://xdaforums.com/showthread.php?t=1980644 ( Decide if you want to use Triangle Away -it describes why you use it)

Then read how to and install TWRP : http://xdaforums.com/showthread.php?t=1981198

You can flash the kernel zip (Original post in this thread. File with .zip on the end and Perseus in the name) using TWRP recovery very easy with minimal complication. You will want to read and understand how to use it but it is as simple as this:

Make sure you have the kernel zip on your SDcard. Boot into recovery. Press install, browse to your kernel zip on the sdcard, select it. It should complete the install. Done. reboot. Verify the kernel installed in settings > about. You are now using the new kernel.

That should be it.
[AT&T Samsung Galaxy Note II] cottageboy:
How do I back up original Kernal before I flash this one?
[AT&T Samsung Galaxy Note II] 9wire:
I used a LOT of kernels since my old dx, this is running nicely, zero issues.
[AT&T Samsung Galaxy Note II] marcbsmoove:
I've tried installing this kernel 3 times using twrp and it says successful install bit when I check it in about phone,It's not there. When I open up setcpu it's still at 1600......no option to overclock higher. What am I doin wrong? Please help! Thanks to all that reply.

G-Nizzle 2 4 Shizzle
[AT&T Samsung Galaxy Note II] suprstar29:
i am having issues with lag when waking the device
[AT&T Samsung Galaxy Note II] bluntman420:
Me as well. Its about 1.5-2 seconds lag when pressing the power button.
[AT&T Samsung Galaxy Note II] Scott:
No wake up lag for me.

I agree! This kernel is very fast!
[AT&T Samsung Galaxy Note II] yas1987:
Btw what software are you guys using to overclock the GPU?

Thanks, working great so far
[AT&T Samsung Galaxy Note II] antiochasylum:
You cant use software to OC the gpu, its built into the kernel.
[AT&T Samsung Galaxy Note II] NightHawkUndead:
System tuner works great.
[AT&T Samsung Galaxy Note II] breezeli:
Perseus.alpha25.7-i317.tar - If you're using ODIN

Perseus.alpha25.7-i317-CWM.zip - If you're using CWM or TWRP

The other two are the stock ones
[AT&T Samsung Galaxy Note II] yas1987:
if gpu overclock is built into kernel does that mean its already overclocked ?

---------- Post added at 10:10 PM ---------- Previous post was at 09:43 PM ----------

Does that mean its akready overclocked
[AT&T Samsung Galaxy Note II] glitchsys:
Faster USB charging, Undervolting and Overclocking

"USB charging rate limit increased to 900mA."

This means it'll charge faster when plugged into a computer's USB port? Assuming the computers USB port can put out 900mA and not the standard 500mA?

Also I've never really undervolted but I've overclocked in the past. If I undervolt the CPU too low, I imagine all sorts of issues will crop up, including not booting. I assume I could just go back into recovery and reflash the kernel and it'll revert to normal right? Also if I undervolt, I've been told it'll increase battery power (which would be insane considering how awesome the battery is on this phone already), but will it affect your ability to overclock? I mean, can you undervolt + overclock within reason without losing stability? Or does overclocking require more power, thus combining that with undervolting be a bad idea.
[AT&T Samsung Galaxy Note II] 9wire:
I'm oc'ed to 1.7, and undervolted -50 across the board, except the lowest 2. No issues. Battery I can't say, I'm on the phone so much I hve to charge during the day no matter what. It certainly isn't worse, anyway.
[AT&T Samsung Galaxy Note II] yas1987:
What i did instead was leave the 1704 volt the same, and even the 1500, and everything else till 200mhz undervolted by 50, this way you get best of both words, when your doing something intensive it kicks up to 1700 without any undervolting and when its idling at 200 , or just not using much power its undervolted. hope that makes sense
[AT&T Samsung Galaxy Note II] Apo11on:
great job

Here is what impressive phone and quality kernel can do for you:
[AT&T Samsung Galaxy Note II] rockinandroid:
flashed 28 kernel with the 5g zip and all is well so far.....great work!!!:good: SUPER FAST:laugh:
[AT&T Samsung Galaxy Note II] jetrii:
I noticed that there are 2 additional zips in addition to the 5G/5/4/etc. Did you just flash the kernel then 5G on top? Did you have to flash	PERSUES_GUNDAL_GOVENOR_TWEAKS.zip ?
[AT&T Samsung Galaxy Note II] Xelstyle:
5G is Profile 5 WITH the Govenor Tweaks pre-set. If you can't use Profile 5/5G, then you can still try the other profiles, with the govenor tweaks.
[AT&T Samsung Galaxy Note II] rockinandroid:
Yes flashed the 28 kernel first and booted phone and then i booted back into recovery and flashed the 5g zip not 5.no need to install governor tweaks..its in the 5g zip already...:good:
[AT&T Samsung Galaxy Note II] jetrii:
5g seems to be working well. No problems so far :)
[AT&T Samsung Galaxy Note II] ryvandal:
To the dev of this kernal...

First I have to say its amazing... The profiles are awesome aswell!

I do have ONE little thing I have to toss out...

I tried flashing profile 5g... Worked great but I noticed my MUSIC and every other sound out of my phone sounded really... staticy... like it was super low quality.... I thought it was my speaker so i threw on headphones and it was super quiet and sounded very hard on the ears with tons of static....

So I switched to profile 0 and.... Well.... My sound was better.... Weird?

I flashed 5g again.... Sound was chunky again and sounded like poo....

So I reflashed my rom (Clean rom 3.03... not sure of the version but its the most recent one....) and tried 5g again... BAM... music/sound/youtube/gaming sound was still static and sounded very paper bagish...

I flashed 5 (wihtout gov tweaks) and the sound was flawless and sounded super awesome...

I flashed the gov tweaks afterwords.... Sound is awesome....

So a little recap...

5g = sound on android sounds really low quality for some odd reason

but install 5 then boot phone then flash gov tweaks and it works perfect....

I hope this may help with maybe something that you missed or something.... Just figured i'd inform you about a little bit of a problem I was having (THANKSFULLY i found out the problem quickly...)

:)

quick edit: So i realized that profile 5 the voltages were pretty high and I really didnt want to screw around with the settings.... So I rocked profile 1 with the gov tweaks... Is this the best for battery rather then performance???? Or is that a bad idea to run profile 1 with the gov't tweaks?
[AT&T Samsung Galaxy Note II] redrider54:
well ive noticed that too when i flashed 5g and thought it was the beatz mod on jedi rom but its not, its part of the 5g zip and you can fix it simple by going to stweaks and unchecking audio mods and then apply, see screen shot of where im talking about. set everything to default it bam!
[AT&T Samsung Galaxy Note II] P1 Wookie:
Just an FYI, it was not the dev that made those flashable profiles, so there isn't anything for him to fix.

On another note, stweaks does come with a sound section in the app. You can try messing with the settings there until you get what you desire.
[AT&T Samsung Galaxy Note II] ryvandal:
Woo thanks! :)

One more question though... Which of ALL profiles is the best for battery?

Is it 5g?

or profile 1 because its less aggressive?

If it is profile 1... would adding the gov tweaks make it even better for saving battery?
[AT&T Samsung Galaxy Note II] jetrii:
Thanks for the tip! Audio works great after doing the tweak and rebooting.
[AT&T Samsung Galaxy Note II] gundal:
i accidentally left my sound tweaks in the 5g profile (well 5g is the profile i flash to get back to fully tweaked to what I know works)

i run the phone at half volume and it sounds better then full volume wihtout the tweaks, goto stweaks and audio tab and turn off speaker tuning

or flash 0 then 5 then gov tweaks (that wont include the sound changes i made)
[AT&T Samsung Galaxy Note II] redrider54:
im using the 5g one with sounds tweaks off, been okay so far, although i ran into issues moding the build.prop for min brightness to 10 and lcd density to 300 it wouldnt boot up or into recovery.. weird.. all better now with a clean fresh install
[AT&T Samsung Galaxy Note II] jetrii:
I realize that Quadrant doesn't mean much, but the 5G tweak produces some very impressive results!
[AT&T Samsung Galaxy Note II] rockinandroid:
One thing i notice on the 28 kernel or the 5g tweaks...not sure which one it is so i am installing just the 28 kernel with no tweaks and see if i can replicate the issue...but

when charging at night my phone freezes...i wake up and it is stuck on the samsung galaxy note screen and pushing buttons does nothing...i have to pull the battery and turn on again...anyone else experiencing this??? Thanks for anyones help....
[AT&T Samsung Galaxy Note II] 45ACP1911:
Sounds to me like it's the profile and not the kernel. I would just step down one profile and you should be good.